The stores have a serious problem with discovery which makes it unreasonably difficult to find the good original games in the sea of shovelware, but the good stuff IS out there.
People say they hate free-to-play and that they’d happily pay once for access like a normal game, but the stats say otherwise. Almost no one pays for premium mobile games, and that’s why no one bothers making them.
People who use ‘mobile game’ as an insult are usually wilfully ignorant about the platform and just have an axe to grind.