Depends on your own use case but I’ve been using BlissOS (https://blissos.org/) on an old HP Elite X2. As Bliss is essentially just Android-x86, it’s fairly polished; only thing that I haven’t figured out is configuring the hardware volume buttons.

Forza Horizon 1 was never released on anything else (although you can play with BC on newer Xboxes), playing through Xenia is mostly fine, some occasional bugs.