This is answered in the linked FAQ:
Will I have to pay royalties if I use Unreal Studio features in Unreal Engine after 4.24?
If you are not shipping a game, you will be able to select a 100% royalty-free license of Unreal Engine.
This is answered in the linked FAQ:
Will I have to pay royalties if I use Unreal Studio features in Unreal Engine after 4.24?
If you are not shipping a game, you will be able to select a 100% royalty-free license of Unreal Engine.