The problem in brief...
A friend told me...
"I sent a research paper to a respectful journal a Q1 Scopus indexed and received a rejection the second day without reviewing. (My name was affiliated with unknown university).
After a while, I have re-sent a similar work to the same journal, however the paper was a part of my work of my thesis which has an affiliation to a popular university. so it got accepted".
So, why some journal editors assess your research based on your educational institution? don't you think that young and unknown universities should be given a chance?
For me, this bias makes the gap between the popular and other universities getting bigger.