Sayre Ambrosio

I had the same issue I had to uninstall the widgets and then I did a soft reset on my iPhone, which is volume up volume down, push and hold the power button till it cycles. Then I re-added the widgets and they’ve been working fine.

I just upgraded to the 14 pro max and had to do this process. What I can add is when you delete do a soft reset instead of just turning it off. (volume up, volume down, press and hold lock button until it goes off and you see the Apple logo). This will clear any linger cache items. Then when it turns back on do a reinstall from the app store.

You can link to notes from one space to another on the teams account. I do it all the time. Notebooks do not link, though it would be a great idea. 

Did you get this resolved?

Found a temp fix for it if you’re are on mobile and can’t get to a desktop. Add a tag to the view only note and it will become editable. When I tested it, I added the tag let it  sync went right back in and remove the tag and it was fine. 
You can also use this on a note that already has a tag but has gone view only. Just remove it, click done, and then repeat to add. It's tedious but works.

The latest version and Legacy versions work with Big Sur. I've been running the beta of Big Sur for months and it's been fine.

Found a temp fix for it if you’re are on mobile and can’t get to a desktop. Add a tag to the view only note and it will become editable. When I tested it, I added the tag let it  sync went right back in and remove the tag and it was fine. 
You can also use this on a note that already has a tag but has gone view only. Just remove it, click done, and then repeat to add. It's tedious but works.