I am a (mostly) dedicated M mode shooter. The only decision I like the camera making for me is metering the light, and providing me a histogram. I can understand the point of Tv and Av modes, fully understand how they work, but I see ZERO point to using them when you can put the camera in M mode with Auto ISO set. I find Tv and Av modes annoying because invariably I'll be in the middle of shooting, want to change either aperture or shutter speed and I can't because that's not the mode I'm in.
I view the aperture and shutter speed selections as not just parts of the exposure triangle, but also creative decisions. I also find the R series cameras really love to push the ISO as high as they can when left unsupervised. I've had my R6.2 put me into ISO 12,800 on a fairly bright day because for whatever reason it thinks I should be at f/11, with a 1/500 shutter speed (I don't recall exactly, but you get the point.) I do use Auto ISO when I'm using a variable aperture lens. I'll find my settings at the smallest aperture, then set the auto ISO restriction to one stop higher than the setting I decided on. I find that works pretty well and I can make any slight adjustment I need with shutter speed. I use this the most with the 24-105 STM 4-7.1. The aperture variation is very large and I find shooting with that lens produces pleasing results, but getting there can be annoying. Supervised Auto ISO helps alleviate some of that annoyance. I can't hate on it too much, it's a great do-everything walking around lens. (I'm definitely getting the F4 version at some point.)
I shoot an R6.2 and it has all the wheels and buttons anyone could hope for. If you're shooting on a camera that doesn't have a wheel for each part of the triangle, well, I can understand why you might live in Tv or Av. I'm currently thinking about adding an APS-C body to my bag and I'm really trying to not spend over a grand on it. I really like what I'm reading about the R50, but even with the control ring on the lens it's one wheel short. Could I live with that? It does have an ISO button right next to the shutter button. Maybe. For $630 is it worth trying out? Maybe, but I can see how camera egos could heavily influence someone's opinion on this topic.