And some Garmin devices can update over WiFi, too, apparently: https://www8.garmin.com/manuals/webhelp/drivesmart51-61/EN-GB/GUID-CD43108D-1D58-4064-A2DF-95D07135EF2F.html
Looks like Garmin gives Linux a little bit of love: https://developer.garmin.com/open-source/linux/