I have 24 MP on my Nikon Z6 and have prints as big as my printers can manage that are sharp on close inspection. I have 6MP images printed to A2 that still look fantastic and full of detail right down to the whisker. I am completely sure that I would rather have the R3 than the R5 as the R3 will let me get shots that the R5 can’t get. If Nikon really bugger up the Z9 then it’ll be very easy to put in a order for a R3, 70-200, 100-500, and 600 RF and switch back to Canon. If the R5 was on a stacked sensor with a built in grip then I would consider it, until then it is not a big enough jump from the Z6 (and yes I have tried a R5).