@de_lancre I call it a "donation reminder or notification" like here https://gitlab.gnome.org/GNOME/gnome-settings-daemon/-/merge/_requests/432 and here https://gitlab.gnome.org/Teams/Design/os-mockups/-/issues/274 is it nagware or interruptive? maybe... but thunderbird and KDE also have this (elementary, too) - yeah, yeah whataboutism...fundraising banners are everywhere (like on wiki). I can deal with this lol.

@Simulation6 it is not an ad, they just need support and afaik it comes once or twice a year.