Solved! I went to BIOS and switched the Video card setting from Hybrid to Discrete. Now gdm3 offered the wayland option (or, rather, both "Ubuntu" and "Ubuntu on Xorg"). I now run Wayland as confirmed by env|grep wayland:
XDG_SESSION_TYPE=wayland
I believe that nouveau driver is actually being used, so I need to look into the possibility to force Intel, to achieve better support.
Anyways, it seems that Hybrid mode won't pass gdm3 validation routines and it disables Wayland support; switching to Discrete solves the issue.
Solved! I went to BIOS and switched the Video card setting from Hybrid to Discrete. Now gdm3 offered the wayland option (or, rather, both "Ubuntu" and "Ubuntu on Xorg"). I now run Wayland as confirmed by env|grep wayland:
XDG_SESSION_ TYPE=wayland
I believe that nouveau driver is actually being used, so I need to look into the possibility to force Intel, to achieve better support.
Anyways, it seems that Hybrid mode won't pass gdm3 validation routines and it disables Wayland support; switching to Discrete solves the issue.