If you're using Unreal you already have the full source for that proprietary software. If Epic went under tomorrow it wouldn't stop people from finishing in progress games that are built on Unreal.
> OS is slow by design
Really? Game engines are a moving target. You're telling me that slow development times for new engine features are a benefit?
I say, let the AAA teams do the innovating. After they take the first stab at it, you can usually learn a lot and do it much better the second time. In this way OS benefits a lot. The OS solution really just has to play the role that Mastodon has been playing. It doesn't need to match Twitter in terms of features. It just needs to be there and work for when shit goes down.
I don't think Godot will "win" until something dramatic happens with Unity, but when all those devs are looking for alternatives Godot will be there. And they'll also miss some of their favorite features of Unity and some will even contribute to Godot to bring those features to everyone
The thing that OS has going for it is everything benefits it. AAA company innovates? Great, lets see how it works out and maybe add it. AAA company goes under? Great we get a bunch of new users.
As long as it maintains the amazing community it's currently fostering and stays cross-platform, it'll do well. It can only go up imo