Maybe EndeavourOS (a convenient installer for Arch) with a desktop that supports Wayland.
I run that with Gnome in Wayland mode on my desktop and with Sway (Wayland equivalent of i3) on my laptop and I've been very happy with that. You could also run KDE if you prefer
Check out Ondsel. They're working on improving FreeCAD and making the workflow not suck.
Still definitely a work in progress, but the dimension/constraint tools and 3D feature naming are already lightyears better in their version.