

Heliborne? Not played it in years now, I think another dev took over and rebuilt it for some reason and everyone hated it but the they made the original version available as well. No idea the current state of the game.
It also runs natively on Linux
And if tech people are no longer recommending it, or actively recommending against it, it is possible to get people to start switching. This is largely how chrome became so popular in the first place, and that required getting people to change from the default option.