Mac - Upgrade to Big Sur - Time Machine Issues

[cat0w]

I don’t use a Mac anymore, but have you looked at this?

WD Discovery: Apple Has Announced the General Release of macOS 11 Big Sur for 11/12/2020

Please see the following article for the installation of WD Discovery for Big Sur. Please follow all steps included and use the link provided within the article. This version of WD Discovery does not provide support for any Beta version of the operating system. Install WD Discovery for macOS 11 Big Sur