I get that, but my understanding was that you want to be able to see the map after the trip, not necessarily during it. Which is pretty much what I do with OpenTracks - record my trips and then import them to NextCloud where I can see a big map of all of them combined or look at some specific ones. And there’s plenty of Android apps that can import GPX to do the same.
But if MapMyDrive works well for you, then it’s a moot point - enjoy what works.