Unreal is first place already so that wouldn’t matter too much for Godots place but you are partly right, people probably won’t switch to Godot. What I think you get very wrong is the chance for open source offerings in that area, the reason why so many big developers still have in house engines is control but those engines get more expensive as the scope of games increases, I think that wiuld be the perfect spot for open source to occupy but it’s questionable if that will ever happen.