> Nobody makes games in Bevy though
Obviously not true, latest Bevy Jam has ~100 submissions! They might not be the games you were thinking about, but they're games nonetheless.
Beyond the game jams there are definitively people making games with Bevy too, but I don't think anyone of them gone mainstream (yet?) but it's a bit harsh to say no one is making games with Bevy when that's clearly not true.
It takes a long time for a game engine to be ready to create the kind of experiences you're probably thinking about, and even if everything goes great with Bevy in the future, it's still probably years rather than months until any big studio will think of start using it for something important.
With that said, people are for sure making games in Bevy even if the experience is non-optimal. Search on GitHub for "bevy" and sort by latest update and you get a snapshot of the projects that are on GitHub, then imagine there is a magnitude more people working privately.