Since upgrading to 20.04 and switching to Wayland, Gnome terminal occasionally crashes. I interpret the corresponding logs to mean that it’s actually Wayland that fails to do something in the background, which then takes down Gnome terminal:

touko 08 11:35:16 saegusa gnome-shell[4227]: WL: compositor bug: The compositor tried to use an object from one client in a 'wl_pointer.enter' for a different client.
touko 08 11:35:16 saegusa gnome-shell[4227]: WL: error in client communication (pid 11639)
touko 08 11:35:16 saegusa gnome-terminal-[11639]: Error reading events from display: Katkennut putki
touko 08 11:35:16 saegusa systemd[4153]: vte-spawn-bbca1723-5987-4ccf-98cb-3389ad05641e.scope: Succeeded.
touko 08 11:35:16 saegusa systemd[4153]: vte-spawn-fbe02208-95df-4cf4-bfbe-fffc71d6bc7e.scope: Succeeded.
touko 08 11:35:16 saegusa systemd[4153]: gnome-terminal-server.service: Main process exited, code=exited, status=1/FAILURE
touko 08 11:35:16 saegusa systemd[4153]: gnome-terminal-server.service: Failed with result 'exit-code'.

I have yet to nail down the precise circumstances, as this has (so far) been somewhat rare, having occurred perhaps once or twice a week.

Since the log mentions pointer, I should perhaps mention that I’ve set `org.gnome.desktop.wm.preferences` > `focus-mode` to `mouse`. Gnome terminal also exhibits other misbehaviour wrt. to this, occasionally refusing to get focus, or alternatively losing the focus, despite mouse cursor being over the terminal window.