I really hate the idea that you can't get a top LCD mode screen unless it's the R5 and up, especially when you had it in the 20D, 7D and 6D. I'd really like to see it in the R6ii and R6ii along with the grip options for the R7. I think most people would be happy. I think Sony has set the bar for mirrorless cameras however it doesn't mean you have to copy their style. Anyhow, that's just my 2 cents.
Oh! and another thing, I know a lot of people didn't like the move of the power button, I think once they make it standard between all the new cameras it will be fine however, I hate the new joystick thingy button, I think having the jog wheel doubled as the joystick (like in the 80D) would have not only free up some real estate but because of the distance between the directional buttons, it gave better control of the autofocusing points when moving them.
In all Canon is still the king for ergonomics and menu design.