Unity saying "don't worry we'll send a bill to Microsoft and Sony and-" has huge Sovereign Citizen Sending Letter Signed In Blood To Reclaim Their Federal Taxes energy. https://twistedvoxel.com/unity-playstation-xbox-nintendo-pay-on-behalf-of-devs/
Unity Claims PlayStation, Xbox & Nintendo Will Pay Its New Runtime Fee On Behalf Of Devs

Unity Technologies has stated that PlayStation, Xbox, and Nintendo will pay the company's new runtime fee on behalf of game developers.

TwistedVoxel
@glassbottommeg lmao my sides are so far in orbit that they are experiencing floating point rounding errors.
@glassbottommeg Also I want to highlight something. It's not just the big three gaming consoles. There's also app stores for mobile and Steam/itch/etc. If they literally don't just accept egg on the face and rolled this out attempting to force the distributors to cover the costs, that could call for dropping support for the engine or refusing to distribute it. That is one of few (extreme, probably not likely) situations that I could see causing a real exodus. Inability to distribute your game on the major platforms would be huge.

It's possible these platforms could pass the bill onto the devs, but the question would be if they even want to add that workload overhead to their platform or if they want to take a PR hit when it's apparent no one is happy for the changes.