I’m not sure why it’s not doing that. It tends to launch immediately from the terminal, but not from the application launcher (tends to take at least 3 tries).
$ snap --version
snap 2.59.1+23.04ubuntu1
snapd 2.59.1+23.04ubuntu1
series 16
ubuntu 23.04
kernel 6.2.0-20-generic
Terminal output:
$ snap run thunderbird
Gtk-Message: 01:34:01.311: Failed to load module "colorreload-gtk-module"
Gtk-Message: 01:34:01.311: Failed to load module "window-decorations-gtk-module"
Gtk-Message: 01:34:01.311: Failed to load module "appmenu-gtk-module"
[GFX1-]: glxtest: libpci missing
ATTENTION: default value of option mesa_glthread overridden by environment.
ATTENTION: default value of option mesa_glthread overridden by environment.
amdgpu: os_same_file_description couldn't determine if two DRM fds reference the same file description.
If they do, bad things may happen!
ATTENTION: default value of option mesa_glthread overridden by environment.
ATTENTION: default value of option mesa_glthread overridden by environment.
Missing chrome or resource URL: resource:///modules/gloda/GlodaConstants.jsm
Missing chrome or resource URL: resource:///modules/gloda/GlodaConstants.sys.mjs