Just in case anyone is interested in getting a good overview of the new features in Vegas Pro 21 - or new VP21 adopters want to learn more - the VEGAS team have recently released a great rundown on VP21's new features concentrating on the new Z-Depth and Adjustment Track, Smart Masking and Mocha VEGAS capabilities:

And ScrapYard Films also has this: as well as some other VP21 tutorials on their channel.