Yep, downloaded the latest installer and that got me 41.11.0.20717 and it's back to normal CPU usage. Happy days!

Getting the same high CPU problem. The fan on my AMD 5600X CPU is pretty loud when WebEx is maximised. It drops to 0% CPU usage when it's minimised. I have a Smart meter and it's using 20W of extra power when WebEx is maximised, pretty crazy. I've tr...