I'm playing mostly Odyssey when I feel booting up Elite, although I've given Horizons a go a few times now and have to say it plays, feels and looks a lot more pleasant all-in-all. Odyssey in comparison feels it's about to CTD any minute, stutters, freezes (which made me re-enable FSR again last night, and I still had occasional drops into the red fps zone, in the docking bay of all places). I mean, even the opening splash sequence stutters.
What draws me to Odyssey are the planetary environments, I do think they look better there, at least when standing still - the problems begin when things start moving; LoD pop-in/out, jank, frame drops, lighting doing weird things, shadows flickering, textures not loading etc. It can look great but the stars (hur-dur) really need to align for that.
The other reason is that while I remain underwhelmed by EDO gameplay, it is more than what we have in Horizons, so purely from a variety perspective I feel like I'm missing out on something when I boot up Horizons - the problem is, when I actually engage in EDO stuff it's not really that much fun at all ... did a CZ yesterday, it was pretty boring and the AI was exceptionally dumb, standing still in the open waiting for me to shoot at them - all while the game chugged along at an inconsistent 30ish fps and lots of jank, despite FSR enabled.
I'm hoping performance improvements (whenever they actually appear) will make the entire experience more pleasant, but my concern is that it'll only highlight the shortcomings of the gameplay additions even further.