Yeah I think we can draw a bit of a line from they were a major game not on the Play Store and now they're a major game on the Play Store - my guess is barely anyone sideloaded it.
I think they've faced antitrust things around the dominance of the app store, however do they actually do the same thing as apple here? I can find a story online of tinder switching to asking users to enter their credit card details in the app.