They’re not an iOS developer, it’s a game engine used for cross platform game development. While there are many mobile games made using unity such as Pokémon GO and similar, there are also a lot of home platform games that use the engine, such as Among Us, Fall Guys, Hollow Knight, Pokémon Diamond and Pearl remakes, Cuphead, Outer Wilds, Genshin Impact, etc.

This issue impacts almost every gamer no matter what platform you are on.