Godot is extremly easy to work with. It does not have all the bells and whistles of Unity or Unreal, but in turn is very small, simple and stable.
My point being: it's very easy to "switch" to Godot when you've created nothing of note in other engines to begin with. You're not going to actually ship a game, so concerns about platform compatibility, stability, collaboration and so on are significantly less important than in an actual commercial project. There are real commercial games built with Godot, some of them even decent, but the vast majority of Godot users are never going to actually ship a game, same as with any other engine. I think we can only evaluate the true popularity of Godot years in the future; there's a lot of talk right now, but not much is actually being shipped.
I think that this is a bit of an unkind take, but also a truthful one. I've shipped a few (mediocre) games in my freelance developer days with Unity and actually finishing a game and getting it out the door is more time consuming than most might believe, same as with software and the 80/20 principle. Especially when the majority of game developers are quite starry eyed and have fantasies of grandeur that lead to attempting projects with unchecked scope creep.
On the other hand, there's nothing wrong with engines that let you iterate very quickly and come up with game jam worthy games, ones with smaller scopes, oftentimes not even 3D graphics. That's why even arguably technically limited platforms like GameMaker have also had good games developed in them that have seen success.
It's just that there's definitely a bit of a disconnect between what the loudest voices will say/praise and what the more corporate projects will require.
May not be as much as Unity, but there are enough success stories.
But in the case of Bevy, can you tell a game is made with it?
As for Bevy I haven't heard of any success stories like the Godot ones, but I also don't keep up with it to that degree yet, I'm mostly keeping an eye for when it gets closer to 1.0 and the editor at which point I want to take a deeper dive.
Bevy was also quite rough for the first few years, focused a lot on foundational work.
It will take a while longer to see whether it can become a success or not.
No further questions, your honour