Hi Quentin,
I have some problems with gmb and Gnome Shell.
I have "Window List" extension (https://extensions.gnome.org/extension/25/window-list/) activate.
I launch GMB -> GMB is on the Window List (OK)
I reduce GMB -> GMB is on the Window List (OK)
I reduce to systray GMB -> GMB isn't on the Window List (OK)
I clic to maximize GMB from the systray -> GMB is maximized but not in Window List
Other problem :
GMB doesn't appear in Media Menu with Media player indicator extension (https://extensions.gnome.org/extension/55/media-player-indicator/) or MPRIS Player Control extension (https://extensions.gnome.org/extension/54/mpris-player-control/), unlike Rhythmbox, Clementine or Banshee.
The only Media Menu working with GMB is Music Integration extension (https://extensions.gnome.org/extension/30/music-integration/)
I have open a bug in Window List launchpad (here (https://bugs.launchpad.net/linuxmint/+bug/892716) and here (https://github.com/linuxmint/Cinnamon/issues/20#issuecomment-3257472)) but may be the problem is in GMB.
Regards.
Up au cas où tu n'aurais pas vu.
Yes I saw your post, sorry I didn't reply.
I haven't tested gnome shell yet, as I don't like it (haven't tested it but I know it is inferior to my good old 2d pager)
As you said it may be bugs in gnome-shell, so I'm not too eager to test it
Can't stand it either but I do have a partition with it loaded if anyone needs testing help, just offering
I close to sure that it's a small incompatibility with Gnome Shell : the problem occurs on Gnome Shell and Cinnamon (a GS fork) but not in Gnome 3 (Gnome Classic Session <=> Gnome fallback <=> Gnome without Gnome Shell).
But in Gnome Classic there is another bug : each click on gmb launcher load another window instead of switch to the opened gmb window.
PS : I'm now on debian testing with Gnome Classic / Shell