Some GNOME applications may not work in NoMachine Wayland-based session
This problem has been reproduced with NoMachine GNOME-Wayland virtual desktop running on RHEL 10.
The GNOME-Wayland is correctly started inside the NoMachine session, when the server is configured to use:
DefaultDesktopCommand "/usr/bin/gnome-shell --wayland --headless"
However, in the NoMachine Wayland session, some GNOME native application launched by systemd, e.g. the Terminal, or custom icon themes, e.g. Papirus, could not work properly.
Launching the Terminal as single application (custom session) works properly.
