I’ve done full manual installs and archinstall installs of mainline arch and I would argue endevouros is arch. It’s more than just “arch based” it’s literally a basic arch install with calamaris. It updates from official arch repos and arch kernal ect.

While I only tell people I use endevouros I do not understand why anyone cares if an endevouros user says they use arch lol. What is the difference between that and something like archinstall besides slightly easier btrfs configs?

I’d consider CatchyOS to be in the arch based category but not EndevourOS