I wonder how hard Apple is going to fight this. When laws start rolling out and iOS supports 3rd party stores and sideloading, will they region-lock it to just

I wonder how hard Apple is going to fight this. When laws start rolling out and iOS supports 3rd party stores and sideloading, will they region-lock it to just phones purchased in the EU and Japan? Will they tie it to Apple accounts somehow? I guess what I'm really wondering is what hoops I'll have to jump through as a US-located user to be able to sideload on my phone next year.