I always disable those auto-backup-files features in any editor I use. Never understood why that was the default-on for so many editors.
I do too, it’s just that I’ve realised that emacs-nox is awesome container / vm editor out of the box, this backup thing is the only most annoying part (and Ubuntu 22.04 emacs packages expired cert)
It can be handy. It gives you an additional safety net on top of the VCS that runs automatically in the background. It doesn't take much to configure it to your liking, e.g. [1].
[1]: https://gist.github.com/imiric/812398910c59cf00ab43d9172fe42...
It made more sense when running editors over tenuous telnet connections was more common