Depends how you define well-known. The Godot showcase lists some of the popular ones: https://godotengine.org/showcase/. I believe Dome Keeper did $1m+ in sales with a 2-person team and I assume Brotato and Cruelty Squad are probably in 7 figures as well. So far, the hits have definitely been on the smaller side, but I expect things will change with Godot 4 being released. Another big factor is that most of the games released so far have been developed by tiny teams.