Both systems in this household run Debian for a while now and I notice quite a few differences compared to Arcolinux (Arch).
First: no crashes or bugs after an update up to now.
Second: I do not miss the AUR, because the uncommon (or more up-to-date) things I need are installed easily with Flatpak. Yay!
Third: somehow the home network runs better with Samba and KDEconnect. I've had several problems with that on Arch. Not anymore!