This shouldn't come as a surprise. Canon are nearly always beaten to the market by Nikon and Sony. Some people would say it's because Canon lag behind in engineering. Others would say it's because they like to see what others produce, learn from it, and make a better product, albeit a couple of years later. Sony are undoubtedly the leaders in camera technology. Canon have in my opinion the best ergonomics and greatest reliability. Nikon make superb cameras and usually great value too, but they've never been able to match Canon's marketing skill, so unfortunately they are losing market share. A great pity IMO.
I agree Canon has the best feel and great reliability, but I have to strongly disagree about Canon lagging in Tech.
Canon beat everyone to market with 8K in a mirrorless body, Sony was forced to respond with the A7SIII to take back some of the headlines. No way the A7SIII was on their road map for when it dropped. The 9mil dot EVF was all I needed to see to tell me Sony stepped up the ship date on that product in response to the R5 and R6. My guess is the A1 was slated to go first and Sony quickly switched gears to get the A7SIII ready to ship along side the R5 and R6. Had they known of the thermal limits they might not have reacted so quickly.
Sony then responded with a monster of a camera in the A1 that beats the R5 in many ways but is not really that much better for image capture and worse then the R5 in autofocus for video. Canon stands alone with animal eye autofocus in video.
Canon have already mapped out an BSI 8K sensor for their Cinema line that will likely be the heart of an R1 and if the R3 shocks us all with a price point that is close to the A9II then once again Sony will be asking what Canon is up to.
It has been cool or trendy to say Canon is behind on their technology but I think that ship sailed.