Gnome samo o sebe bojuje proti systray.. https://blogs.gnome.org/aday/2017/08/31/status-icons-and-gnome/
"Another key design principle for GNOME is to put the user in control." LOOL
A ked si pouzivatel chce prisposobit prostredie, v pralese Gnome extensions a ich verzii vs verzia Gnome vs system update (ked nahodne extensions prestanu fungovat, ...) je IMO situacia porovnatelna s dependency hell. Nastastie existuju alternativy (KDE ;-) ).