At first, I used 21.04 with Wayland that worked great. After that I updated to 21.10 and had Problems with WLAN and the Left-Side Panel. Because of that, I tried the update to jelly. After the reboot and login into Ubuntu Wayland, I shortly get a black screen and get back to log in. The login now only work with xorg.
At moment, I’m fine with the running Ubuntu. But because jelly is in development, some report may could help I offer to look deeper into it. But be aware I’m not a developer and mostly a desktop user with some terminal skills got learning by doing.
@adlerhorst, the problem you describe sounds like the Wayland session is crashing, after which it will be disabled and only Xorg offered. It’s very rare and I haven’t heard of anyone experiencing that in quite a while.