My retroid pocket gets little use unless i'm away from home, so i know i dont need one, but not all are the same but it makes far less sense if you have a PC.
For my friend he takes it to work on trips away etc and is holding off on PS5 etc only has a budget laptop so with the dock it keeps him happy, plays mainly retro style games.
I think it's a good device it's just a case does it fit into your life, like most handhelds last one i had that i used a ton was a nintendo DS but that was some years back now.
As good as it is i just can't get one as i'd not use it enough, regardless of how big my steam libary is i'm on my PC and not away enough to need one.
if however the price dropped a ton then i could see myself getting one and most likely will at some point.