Yep, standard for FPS games with the younger folks seem to be 144 FPS/Hz or even 240 FPS/Hz for competitive/professional gaming.
If Fdev aimed their game at the FPS crowd, it gotta run at least 60~90FPS with the recommended specs @ 1080p.
I'm 60 years old and I have been running 144hz for about six years years now.
It's not just FPS games that benefit from the high refresh rate, racing and flight Sims do as well. Even desktop applications can show an improvement will smoother animations as you drag a document across the screen.
High refresh rates add a sense of fluidity to motion and clearer visuals. In one game I played there were some bars like a jail cell. If you moved back away from them and panned across them at 45Hz you they would blur so bad you could not see through them.
At 60Hz they basically thickened up to about triple their size and obscured your view. Somewhere between 90 and 100Hz this blur went away and the bars looked like bars as you panned. When you play the game you don't notice this for the most part but the blurring does affect your ability to detect other players.
I personally can see a noticeable improvement from 60 to 100Hz and a minor improvement from 100 to 120Hz, above 120 and I don't really notice it.
That being said, I don't notice much of a difference in Horizons as the distance is quite far for most objects and there is always a lot of textures loading in late.
I'll have to see if it works better with Odyssey, if the frame rates ever go north of 60Hz and the game does not stutter... If.