Held an R today for the first time. Nice heft and feel. Then I looked through the EVF. Awful. Just as bad as the A9. These are among the best EVFs but are soooo far from the OVF on my DSLRs, that I would not buy the camera.
What I don't understand is that the rear screen was nice and sharp and high resolution and a pleasure to use. But the EVF....
The viewfinder is the interface between the artist and the scene. A step change is needed before I'd buy a mirrorless.
I have the same experience with M50 compared to a DSLR: The electronic viewfinder is - during the day - inferior in a lot of situations. In darker environments the EVF can help. While I have not problems with the resolution which I find fine (perhaps because of the smaller viewfinder size) the colors are a little bit off - while the rear display is much much better / more realistic (same observation here) and I am positively surprised each time
But I can live with these limitations, because:
* a "bad" viewfinder quality helps to see the photo from the real scene,
* helps to struggle for a good photo through the "bad" viewfinder and you need to get the best composition / contrast / light by
changing the perspective
* avoids eye damage while photographing in contralight (with the chance to have the sun in the frame).
My dream was a switchable EVF-/OVF-combo viewfinder in a DSLR but ... with the EOS R this complex and maybe bulky solution is far away now.