Remember it’s 10 million that have installed the game, I’d say a massive percentage of those would have been on the free or $1 GamePass. We don’t know whether they flew once and then deleted the sim, or whether they continued.
Even so, looking at the Steam numbers above, which is only a fraction of players, I’d say we have quite a few concurrent users, probably in the tens or hundreds of thousands. Look at some of the download numbers on flightsim.to and you’ll get a sense that we have quite a large user base for a flight simulator.
So well done Asobo!