I was in a real quandary about buying an R52 as I already have an R5.
While I do shoot a few birds, most of my subjects are reasonably static, so while improved af and other features would be nice, I'm still very happy with my R5.
For little more, I decided to buy a Fuji GFX 100S2.
For how I use a camera, 100megapickles are very, very nice.
Using a Fringer adapter I can use all of my old ef lenses, although there is some vignetting on some lenses but even using the Fuji's 35mm crop mode, it still gives you a 60mp file.
And it's fun to learn a new system. Canon's menus are so much better and logical.
I've been shooting Canon since 1964, and I have a large selection of Canon lenses both ef and RF, so please don't call me a turncoat, but for me, it made sense to expand my photography rather than just buying an improved version of what I already have.