It's a bit of a weird edge-case, but the very popular Battlefield 6 is partially a Godot game. It's an odd hybrid of a proprietary in-house engine with Godot grafted onto it, which serves as a public-facing SDK for players to build their own content. I know that's not exactly what you meant but it is an interesting application in a major AAA title.
Battlefield 6 of all things includes Godot as core of the Portal map-building. Casette Beasts is what Pokemon wishes it was. Upcoming Planetenverteidigungskanonenkommandant looks gorgeous from the previews.
I don’t know if I could list something that matches say Cuphead or Silksong, but I do think that Godot is currently on a Clayton Christiansen-style worse-is-better ascent right now.
Maybe a bit of an exaggeration. But I think at least 30%. Unreal is popular too. Unity seems to be more popular for indie/coop/single player/certain art styles. There seems to be many more unity games overall, but a lot of them are very small.
