I decided to play with PHP 8.0 on my site, just to see if it worked.
Predictably, it bricked my site immediately. I thought it was going to be an incompatible plugin, but going to the Wordpress logs, it was a memory limit error. I was able to correct in my php.ini
When I made that change however, I noticed that the default values for PHP 7.4 and PHP 8 were pretty different.
PHP 7.4 defaults
PHP 8.0 defaults
Can we set the defaults for PHP 8 anywhere so the average user doesn’t have to change their php ini for running wordpress?