Desktop and documents won't sync on new MacBook Air

I have the same issue, on my MacBook Pro (2018). I just started in the last 24 hours. Documents that I created on my iPhone and saved to iCloud (Files) are showing and accessible on my iPad Air 2, My iPhone 7+ and when logging into iCloud through Safari. The files are not showing in my Mac. I've re-booted and forced a sync, but the files still do not show.

Did not work for me.

I was able to force a sync by adding a new document through my mac. As a result of the addition:

1) documents that were not accessible on Mac became accessible

2) document added on Mac accessible by all devices

Interesting, running MacMini circa 2011 with HS, iMac circa 2012 with Catalina and RMBA with T2 Clean Big Sur. The MBA did not have Desktop and Documents enabled by default. The single file on Desktop via Catalina iMac appeared on MBA with 1 minute of enabling . Guess it depending on the file to sync - was 3 KB

Go to Preferences >> Internet Accounts >> enable Desktop and Documents ( this one category )

It is already enabled. The syncing was working up recently. I only noticed today.

Remove the enable. Restart computer and Enable it again. It may take a few minutes to sync - at least it did for me.

Interestingly enough, I can add documents to the folders on my mac, and they are then synced with all the other devises. The issue is with documents added by other devices not showing on my mac