@Dingbatt Yes but I didn’t have a Harmony Elite and didn’t want to go and buy one just to solve this Apple-induced problem. And since I learned how to work my C8 remote with my ATV4K I too have hardly picked up the OEM ATV4K remote.
We mainly use ATV for watching ‘other apps’. If we want to watch ATV+, we can do that directly on the TV because both our LG C8 and C9 now have ATV+ apps. The ATV remote issue doesn’t come up because the TV remotes are the default remotes anyway.