In my opinion, absolutely. Although the 1DX Mark III is still Canon's flagship, the Canon EOS R3 combines the great advantages of the mirrorless system with the durability and robust build of the 1DX series, and if I had to invest in a new camera right now, it would be this one.
If you are a serious wildlife photographer who prefers to travel light, you need a very reliable autofocus system and you need the best weather sealing on the market in a camera body, then this camera is definitely for you.
[T]his camera body here is far from flimsy; it is a sturdy, hearty, very comfortable piece of gear that can be customized to achieve quick and accurate performance levels out in the field.
[W]ith 7 frames per second and 21 RAW files before the buffer hits in continuous shooting I think Canon has made this camera very capable of dealing with most wildlife situations.
