Same problem here. My setting : screen turned off after 5 minutes. When I wake the screen, I get the GDM login screen and a new session opens. The previous session is lost. Same behaviour with wayland and xorg.
Logs xorg session: https://pastebin.com/pb7XEbXZ
Logs wayland session: https://pastebin.com/Y002JiEv
Same problem here.
My setting : screen turned off after 5 minutes.
When I wake the screen, I get the GDM login screen and a new session opens.
The previous session is lost.
Same behaviour with wayland and xorg.
Logs xorg session: https:/ /pastebin. com/pb7XEbXZ
Logs wayland session: https:/ /pastebin. com/Y002JiEv