Runner up in "problematic downstream/distros packaging behavior" is #Canonical insisting on packaging old buggy versions in #Ubuntu using their endemic #Snap format. Ex.: snapcraft.io/gnome-calendar
It'd be really nice if they'd stop doing that, this is absolutely detrimental to the app's developers.
#SnapCraft creates confusion, until users eventually go out of their way to surgically remove it from their desktop OS in the same way Raiden rips out spines to acquire electrolytes.