I went back to 15 after accidentally upgrading to 26 because on MBA 13" screen the new UI design uses a lot of extra padding everywhere wasting screen space which is already at a premium (especially vertical). Hoping 27 fixes a lot of these issues.
Asahi is a very cool project, and worthwhile if someone goes into it well aware of the major tradeoffs they're making, including reduced hardware functionality and support, which is improving, and significantly degraded security, which will likely always be the case.