Auto-save works fine.After CSAM I am thinking of abandoning Apple altogether. I am interested in your experience. Most that worries me is Apps, most Linux apps are half baked open source projects.
The other thing that worries me is the "It just works" which has greatly benefitied me on MacOS. Everything works no need to extra fiddle. Whenever I use Windows I find myself right back in the Control Panel trying to figure how something works or why it stopped working.
Also, does Linux have auto-save? With MacOS I just open a text file , type, quit...it auto saved it no worries. Even on a crash it auto save my opened tabs.
In my experience plenty of open source software isn't half-baked while some proprietary applications are available cross platform. For instance, to replace Adobe, I started to use rawtherapee, rapid photo downloader, krita, inkscape and davinci (free version), software far beyond what I actually use it for.
When you just start, tinkering is part of it, you got to get through the basics, find your way around. After a while a new installation, customizing your system, will go as wicknix described above.