Xbox version looks really good!
Due to the warm weather, I’ve been playing on the “Low-end” preset this week, and it’s still been really great. The only real issue is that a lot of times the destination airport only pops in at the last moment. But very useable!
Probably it was using the hillsides to gradually gain elevation.
Mixing it up is probably beneficial ;) I don’t fly that high much, but I’ve really enjoyed flying at 25,000 ft over areas where I’ve completed a bush trip, and seeing all the features from that height.