Rock stability. Everything works. I run debian oldstable, even bookworm is too much for me at the moment. Yes, seriously. I tried to connect to my work office using azure web client and the keyboard layout was wrong. When I went back to debian bullseye, it worked as expected. By the way, this bug also happens with arch and fedora.
I have installed arch as well because sometimes I just want to play with things. I'm very interested in immutable systems, but NixOs is too difficult for me and I'm afraid I will spend too much time on it.
Back in 1999 my windows laptop got hacked and my bank identity was accessed. On a Clean Windows I had Just Installed.That did it. I formatted my hard disk and installed first Linux Mandrake and finally settled on Debian Potato . Never looked back.