It depends, I had a bad experience because in some publication the reviewers asked me about preprints.

Do all journals allow preprints to be cited as references? And what happens to my preprint when my manuscript is published?

“Journals have different policies and levels of engagement with working papers and early stage research; some are more open to the idea than others. Over the last decade we’ve seen a hugely increased acceptance of preprints as a viable source of citeable references. There was a big step forward in the early nineties when SSRN, (along with the World Bank, and Woods Hole Oceangraphic) became one of the very first non-journal entities to be granted an ISSN number. This entitled us to become a member of CrossRef and register DOIs for the working papers on SSRN. Since then we’ve seen more and more early stage research work being cited in peer review journals....

https://www.elsevier.com/connect/authors-update/lifting-the-lid-on-preprints-part-two

The Rise of Preprints Is No Cause for Alarm

At a time of fast-paced science and rampant misinformation, can we trust the non–peer-reviewed literature?

The COVID-19 pandemic has led to a cultural shift in the way that science is communicated and shared. Traditional scientific publishing is a slow process and so, needing a faster route of disseminating vital new findings, scientists turned to preprint platforms, which host non–peer reviewed articles on specialized servers. My colleagues and I reported this month that researchers shared more than 35 percent of the early COVID-19 literature as preprints. But scientists aren’t the only people who have turned to preprints; we found that members of the general public and journalists have been sharing and accessing preprints at unprecedented levels...

https://www.the-scientist.com/news-opinion/opinion-the-rise-of-preprints-is-no-cause-for-alarm-68667

First of all, let us have a look at that category of articles for those who don't know the preprint.

A preprint is a full draft research paper that is shared publicly before it has been published or even peer-reviewed by a given journal or conference. It may have been given a digital object identifier (DOI), and, in turn, it can be cited in other research papers. But, academics usually prefer to read and cite final published versions of journal articles or conferences instead of preprint (e.i. pre-publication works).

I have a different perspective for uploading any preprint anywhere before it has been published. My advice is not put any research anywhere until it is published and tagged with your name.

Why you let others know about your insights and methodologies before publication?

You may say that I am somewhat old-fashioned, but I have a different perspective for uploading any preprint anywhere before it has been published by your name. So, my advice is to not put your research anywhere until it is published.

• Your manuscript may be copied and then published by others before you can do that. This stealing of your paper might be happening. You must wait until the paper is accepted and then published by that journal. Then, upload that research item on any platform you wish.
• You should avoid telling the other researchers about the details of anyone of your papers until it has been published and seeing your name by yourself.
• A journal may have automated plagiarism software to check the paper before admitting it to the reviewing process. There are chances that your paper can get a rejection at any point. Thus, to avoid this problem, don't publish the preprint until you got ACCEPTED and see that it is tagged with your name.

One of my friends was accused of plagiarism; do you know why?

After about three months, his research paper was rejected because of plagiarism. When he checked the journal report, he found that his paper was accused of plagiarism with a 61% percentage. The reason is that his manuscript was previously uploaded as a preprint. It took him another two months to solve the problem and remove the manuscript from the database of the preprint.

So, in order to solve this type of issue, it may take several months of following up to remove the manuscript from the database of the preprint. Anyhow, If there were accusations of plagiarism, it is not well for any researcher's reputation, in any meaning.

Publishers Integrate Preprints Into Their Workflows

There is an apparent dichotomy between the “need for speed” – never more apparent than in the rush to find the most effective treatments and preventative measures against COVID-19 – and the time-consuming thoroughness required by extensive peer review. Nonetheless, these case studies show that these requirements are not irreconcilable opposites. Publishers and independent peer-review platforms have demonstrated that they can modify the traditional submission workflow, accelerating the tempo of scholarly dissemination while simultaneously satisfying the essential requirement for comprehensive peer review for learned publishing...

https://scholarlykitchen.sspnet.org/2021/09/13/guest-post-publishers-integrate-preprints-into-their-workflows/?informz=1

To address the cultural barriers that remain around participation in preprint review, we need to collectively agree on the norms and behaviors we expect when creating, responding to, and interpreting preprint feedback. The ASAPbio preprint review cultural norms working group has developed a set of principles underpinning a positive and constructive approach to preprint feedback: the FAST principles. The 14 principles are clustered around four themes: Focused, Appropriate, Specific, and Transparent (FAST), and are relevant for all the actors involved in preprint feedback: authors, reviewers and the community...

https://osf.io/9wdcq/

https://asapbio.org/fast-principles-for-a-thriving-preprint-feedback-culture

It happened to me once when I uploaded a preprint intended to be presented in a conference, then we published it in a scientific journal, but RG every time talks about a conference paper of low score !!.Regards.

Drive discussions about the productive use of preprints...

ASAP invite Fellows to help shape their strategic initiatives, participants can join one of the activities below or can develop a preprint project of their choice:

• Preprints in progress campaign
• Crowd preprint review activities
• Visibility and recognition of preprint reviews...

https://asapbio.org/preprints-in-progress

https://asapbio.org/crowd-preprint-review

Using trained preprint scouts to identify preprints that may be a good fit for a peer-reviewed journal may be a useful method to increase appropriate submissions, but needs to be implemented with care...

https://ecoevoevoeco.blogspot.com/2022/04/the-promise-and-perils-of-preprint.html

If your work is totally done, I see no problem in uploading a reprint except one case that it could need some alteration by peer reviewers. Regards.