Coming from an european. For software, use FOSS if you can.
OSMand is the best, it’s FLOSS and the foundation that publishes it is UK-based. It also needs no cloud services and no internet access once you download the maps, which are freely available public data.
I know, it’s still a single-digit percentage of the market share, but I wish GOG would finally give us an official GOG Galaxy version for Linux. Yes, I can integrate my GOG account with Lutris, which is fine, I guess, but steam manages to grab my fickle attention with their app easily, including tempting me to waste money on DRM-proteced game licenses where the games aren’t even owned by me 😞
So far, Valve hasn’t abused that, and they have been amazing for Linux gaming, but it does not feel great, knowing the fundamentals there are what they are.
Other people have mentioned Heroic as another Gog client