Godot is (becoming) a very good competitor to Unity. Godot pre-4 was not ready for prime time, but Godot 4 is almost there. I'm pleasantly surprised by the leaps-and-bounds they've made over Godot 3/3.5, and Godot 4 has surpassed Unity in a number of areas (though in some cases, they've been assisted by Unity shooting itself in the foot, such as with Unity's non-existent networking functionality and chaotic approach to render pipeline development).

However, Godot 4 still has a ways to go before it's competitive with Unity in the AA space (meaning, for example, games by studios like Paradox, Amplitude, or miHoYo). Mostly, the asset pipeline still needs a great deal of work. Hopefully the Epic investment will let them reach parity (or exceed) Unity on that front.