I have to agree --- the 1DX III has not been widely endorsed by wildlife photographers. There is a smidgen of reviews on YouTube, but not a big rush to embrace. The intended audience is really sports photographers, and with no sports happening these days you're just not hearing anything about the camera at all since the initial release. A friend of mine who is a Canon ambassador and pro wildlife photographer got one to try out for a bit, and he said he was struggling to get the AF to work for him. Now he's testing the R5 and he seems to enjoy it quite a lot. As for me I'm still really quite delighted with Mark III and find it a very nice step up from the Mark II. It's too bad that 20 MP is now considered inadequate (especially when compared to the R5). If nobody knew in advance that a particular image was taken with a "low" MP camera, they'd probably never realize it.