Thank you very much for your comments!! Much appreciated!
I couldn't understand very well what Amy said. You're clarifications help me a lot
About the "Auto focus problem", I think there are two factors playing here:
1- in the last review, he said he set AF to "Face detection" (something that lot of people like, and will use, but not me)
2- He, and Amy, were holding the camera very close when walking (I don't know at what focal length) That may be a cause for AF hunting or out of focus if it was reaching the minimum focus distance.
- Gordon's video didn't have that problem at all when he was walking handholding it, he probably held the camera with his arms fully extended.
Although on his specific Face AF test the Sony is a mile away ahead, no doubt Sony is leader in this point (I still remember the spot of A7r IV).
Sony is improving some features much faster than Canon indeed. In fact it's the king of mirrorless cameras, sensors and auto focus processing technology.
Cheers!