I can recommend godot. Got into it last weekend and compared to unity it runs like a dream. No freezing for seconds every time you make a change to a script
While a Godot fan, there are some serious rough edges all over the place.
Godot 4 finally solves the insane widget sizing/positioning hell, but is still itself super unstable (scenes corrupted between alpha releases) and buggy (scenes broken on clean import).
It's going to take at least another year for it to stabilize and be close to production.
Meanwhile, the 3.x branch is simply lacking features.
It's OK for 2D, though. If you can stomach the UI widget hell.
I really wish I weren't years into a major Unity project, because I'd love to make the leap. Every single time I see Unity in the news these days, I simply think "oh god, not again."
