While I cannot guarantee the full 100% operation of Xojo on Linux Wayland Compositors I have found a way to make it work and not crash immedeately. Launch Xojo with these modifiers and/or add them to the .desktop file:
env -u WAYLAND_DISPLAY GDK_BACKEND=x11
The exec line of a .Desktop file:
Exec=env -u WAYLAND_DISPLAY GDK_BACKEND=x11 /opt/xojo/xojo2023r2/Xojo %F
I have tested running a few of my apps, building and clicking around the UI without failure. Hopefully this can help anyone wanting to try Wayland 
- Operating System: Kubuntu 23.04
- KDE Plasma Version: 5.27.4
- KDE Frameworks Version: 5.104.0
- Qt Version: 5.15.8
- Kernel Version: 6.2.0-27-generic (64-bit)
- Graphics Platform: Wayland