Before Godot 4 the 3D engine was pretty far behind, think early 2010 teach. With Godot 4 it got an insane upgrade which puts it in par with Unity as far as I understand (not a unity expert), but still behind Unreal (then again, everything is behind Unreal.)
Unfortunately it takes multiple years for a 3D game to be developed, so it’ll be a while before we see actual released 3D games with Godot 4.