You directed your concern to the open Q&A forum (and not to anyone of the RG team). In my experience the RG team is very reluctant in removing papers (even if there is something serious going on), in this case I don’t think they will do much, but you can try to report the paper https://help.researchgate.net/hc/en-us/articles/14295790541073-How-to-report-content-on-ResearchGate
Out of curiosity can you indicate some points why you are sure this is a fake paper?
Best regards.
PS. If it really has to do with serious questions about the research, possible plagiarism, AI generated content, etc. I would recommend going to PubPeer https://pubpeer.com/static/about This site collects comments about individual papers and the comments vary from honest detailed questions to proof of scientific misconduct (which quite often eventually lead to retractions).
I am not even sure why I keep trying ;-) I guess this is how I spend my day-off. But if you look at the part of the text, I enclosed you see [24-29] here is your paper cited.
Best regards and Happy New Year to you too.
PS. By the way if I use Google translate for this (highlighted) part it basically said:
The first steps of rehabilitation begin before the treatment process. Practice has shown that children who undergo surgery are more likely to benefit from rehabilitation if they learn basic rights before surgery [24–29]