How to fix image fill in question press after php update?

Question

WordPress

Updated php to version 7.3.19 on the recommendation of WordPress itself. As a result, the admin panel constantly breaks down, namely the posts page.

Changing browsers doesn't help. But the main problem is that media files are not loaded in any way. Tried every way. Both through the Media files page and in the editor itself. The editors turned off Gutenberg, in the classic it also does not load. I tried all the ways to fix troubles:
1. Disabling plug-ins, themes.
2. php max_upload max_input_vars directives
3. php imagick , GD modules
4. The health of the VP site did not reveal any errors.
5. some hooks for disabling the rest api.
6. There are accesses to the folder.
7. Complete refilling of the core vp.
8. Classic editor

In total, all solutions from Google do not work. We need a really working solution, from the one who solved the problem, and not stupidly googled it.

There are versions in Google that the server itself is somehow buggy. In my case, the php-fpm + nginx bundle works. Server on CentOS Linux release 7.8.2003 (Core)

Answer 1

the solution was simple
chown -R user:user /var/lib/nginx/

Answer 2

Have you rolled back to a previous version of PHP? If the php version is the only reason for the error, then this is the solution. Probably not the only one, but certainly the simplest