I do. iMac, Studio and MBA all back up to Time Machine. The iMac and Studio alternate between a locally attached drive and my NAS and the MBA just to my NAS.Do many people use Time Machine these days? Or do you just back up stuff to iCloud?
All three also back up daily to a local SSD using Carbon Copy Cloner and the Studio has Backblaze installed.
And my documents/desktop folders are part of the iCloud Drive. Not that I keep anything whatsoever on the desktop.