Also auto-save is a mixed bag. With manual save, I was free to start editing a document and then realize I want to save it as something else, or just throw away my changes and start over. With auto-save, I've already modified my original. It took me quite a while to adjust to that.
Almost none do, though. Auto-save almost always writes to a temporary file, that is erased when you save manually.
Text editors shouldn't do that though. And those shared-view editors that don't have the concept of saving have this very relevant drawback.
AI tools have caused me to trip up a few times too when I fail to notice how many changes haven’t been checked into git, and then the tool obliterates some of its work and a struggle ensues to partially revert (there are ways, both in git and in AI temporary files etc). It’s user error but it is also a new kind of occasional mistake I have to adapt to avoid. As with when auto-save started to become universal.