Harder since Apple bans this sort of gray-area software development in their store. There are some alternatives you can currently side load I believe though, but they require you pay the apple developer tax for a apple developer account last I checked.

With stuff like this dude, nobody can tell you if the end result will be desirable. You just have to create for the sake of creating what you want to make, and release it into the world. If it doesn’t do well, take the feedback on why and improve, or halt doing it, depending on what you’d prefer.

Unfortunately the single core speed of arm chips is not fabulous, that’s what is mainly required for good performance in most games. You’re best off going with a r traditionally supported cpu for now. The revolution will come (and it’ll most likely be RISC).