No separate box seems to do all of 4K, Atmos, Dolby Vision, HDR10+, HLG without some weird restriction like 'except the Netflix app'. Even worse if you wanted DV IQ I assume, but I think my TV doesn't support it anyway.
And honestly I think I prefer WebOS to Fire sticks' UI for example. Stock Android TV isn't great either. If I was into playing Xbox/PS games I imagine that would make a better 'hub', since it's presumably (I have no idea) more organised around your own content/games at least rather than random adverts and features you don't want. Also probably more money being spent on designing it.
The home screen on my LG TV seems to devote the top 60% of the page to sponsored content. Is this not an issue for you?
But my friend has a Samsung TV and it shows him ads for things he can buy from eBay, ads for games etc. in a similar area .. and yeah that's nonsense, that would really get on my nerves.