I’ve had an issue where steam will not open up. I’ve found the issue to be to be with Nvidia-settings. When i open up nvidia-settings there is not much content. To fix the issue i reinstall nvidia-settings and it goes back to normal and steam opens normally. This fix only works until i reboot and I have to reinstall nvidia-settings again for steam to open.
I can assure you that both pictures are x11. I’ve not had an issue since I moved from GNOME to KDE Plasma.