I tested it a bit in a VM to get familiar with pacman and yay. Latest KDE Plasma 6 and more snaps in Ubuntu's future are the main reasons I want to switch.
As I don't use a separate home partition, I have an extra drive with BackInTime home dir backups and virtnbdbackup snapshots.
Is EndeavourOS stable enough for everyday use and would restoring home with BackInTime just work (as root user)?
Try at least once install pure Arch from the installation instructions without automatic install scripts (best in VM to not worry about the data). It is a very good learning experience and definetly would get you closer to what Arch based systems are about.
Already done: https://lemmy.sdf.org/comment/9371799