Many of the other comments on this post are misinformed and based on past versions of Godot. But Godot has recently had an update that has focused primarily on improving it's 3D support. I get the impression that many people looked into Godot version 3.x, and never bothered to look any further. It's true that it's not as mature as Unity, but that takes time and it will eventually get there. But people are unfairly disregarding, at the moment based on past versions being focused on excellent 2D support but mediocre 3D support.

It's also a bit of a chicken and egg situation because in order for them to mature significantly, games have to be made in Godot, but less people will even start if Godot doesn't look mature enough as a product.

On the other hand, Godot 4.x is really impressive. Like yeah you're not gonna be able to make the next million dollar open world action adventure 70 USD + DLC title in it, but for every one of those there's a hundred games that Godot is more than powerful enough for. But the new version only just came out earlier this year so it's gonna take a while before we see games coming out with the new tech.