It's such a shame that the iPad has these limitations. It's such an incredible device–lightweight, very well designed, incredible screen, great speakers, etc. I really do feel that if Apple sold a MacBook in the style of a Surface Book: iPad tablet running MacOS which could dock to a keyboard and trackpad with a potential performance boost (graphics card, storage, whatever), that it would be my dream device.
All I want is to put Linux on it. I already own copies of Bitwig et. al, if the iPad Mini didn't lock me into a terrible operating system then I might want to own one. But I'm not spending $300 for the "privilege" of dealing with iPadOS.