i had some of that too, too many times with Debian 13, I ended up moving to Fedora to try and i dont have those problems any more.

Mine would be some type of config corruption, making a new user it would log in fine,and deleting kde config files from my user would also let me log in instead of a black window.

Also when shuting down some systemctl service would block the stopping 1 minute and 40 seconds or something similar because of some connection issue ( I do not remember the reason well enough to be precise).

This made me decide to seek some other more stable desktop for the time being, and Fedora seems to just work all along.

Without knowing your config is hard… but let’s try: Apache httpd needs “SSLProxyEngine on” directive to be able to proxy to https sites first (assuming you already loaded mod_proy and mod_proxy_httpd), and then when connecting it will check the name of the server as defined in the proxypass directive to see if the certificate on that server matches the name, it also looks for the date of expiration, if any of those fail it wont rev proxy, to ignore those you have to add directives for that, too, but better make sure names match and dates are fine.

Ubuntu has always been a carrousel for me for one reason or another, Fedora is the most stable for me now with kde, and pop os (if you prefer ubuntu) popOS is ideal and stable