I feel you OP! I'm sure it's also a question of what you're used to and what you use the camera for. If you're interested in a modern camera with the emphasis on responsiveness and robust behavior, there's currently no getting around newer Sonys with FE lenses and I'm not sure whether you'll be happy with that.
I've only played around with an EOS R before 1.4.0, with my own lenses, but I was inside, at a booth, and not really happy. To me, it felt like the gimped EOS M cameras, just featuring full frame. I don't want to talk bad here, gimped sounds drastic, but I judge if I would use a camera in any situation and I guess so are you. For purposeful photography I still use a slr trimmed to a low degree of freedom to be sure that the situation is under my control.
The net often describes the EOS R's overlays as slow/lagging, judging one could trust the AF despite that. They make also clear that the EOS R is not a fast camera, not suitable for BIF, fast action. Sadly, there were some indications that the camera would be much better with 1.4.0.
Do you come from a slr? Can you try out if you are satisfied using the camera conventionally and setting only one AF field?
I also ask out of interest, as I was not sure whether I could only use a mirrorless for both wokr and leisure. Proper conventional operation would be enough for me.
I followed the experience report of a guy who switched from a Canon 5D Mark 4 to mirrorless and who finally opted for a Sony A9, as he was not satisfied with the A7III either, not to mention the EOS R.
I see the strength of mirrorless to be cameras that are fun and comfortable to use. I'd put all mirrorless there, yet I am not so sure if they are all for a hard job where people expect you to be in charge. I'm not willing to spend the money to buy a Sony A9 or Sony A7R IV or the like.