I do think you should see some of the things outside the Switch world lol... If you think EC is "polished" as a final image, you are going to be absolutely blown away by Cyberpunk 2077 running maxed out on a PC, hahaha! I'd post the pics I've taken, but those are long deleted since I only took those screenshots for posting on Twitter/YouTube, and my original review of the game was on XSX instead of PC (I later bought it for PC to enjoy ray tracing).
I'm beginning to think that our disagreement won't be coming from perspectives, it's that you might not have seen things that change your standards for what "polished" is. I still put that in quotes because what you described tells me you are definitely a person who leans towards aesthetics, and by that I can see why some maps in MHRise look "rough" to you. The background of the video I just tweeted for you would be considered "rough": there's no dressing on it, the lighting angle is poor and makes it look low quality, etc. No "still" of the video I tweeted can be taken that would look good, and that's where your definition is. It's that video in motion that's impressive which encompasses more than just the final "image". I think you find screenshot worthy games to be "polished", and of course, that's in great contrast to the idea that games are mostly productions of motion, or a compilation if a very high rate of images controllable by the end user :P
I do plan on getting an Xbox Series X if games like Halo Infinite and Hellblade II turn out to be good, but for the moment I have too much to play on Switch still to need another system. And I know what better graphics than Switch look like, I've seen plenty of PS4/5/PC etc games both online and in person, even played some at friend's places and such.
The main thing that looks "rough" in MHR to me is some of the low polygon environments, where rocks or the general landscape has obvious angular corners. I realize its a necessary sacrifice for a game to be both this open and this nice looking on a 2017 mobile device, it just makes the game look less polished than some others to me.
Bet with Liquidlaser: I say PS5 and Xbox Series will sell more than 56 million combined by the end of 2023.