First problem is that the Documents (two of these) , the first one is wrong.
This is a new PC with AMD processor and an AMD video card
The old PC with Windows 10 has a Intel processor and an AMD video card
The old PC had 2 Documents, both are correct,
The new PC has 2, but the first one is wrong,
The two PCs may simply have different folders in their documents libraries, which is a difference between how the library is set up between the machines, not a bug in Opus.
We can't really compare the screenshots because they don't all show the same information. If the first Documents folder is expanded, we can't see if the second one is there or not.
We also can't see what File Explorer shows for one of the machines, as there's only one screenshot of it.
I fixed it on W11 by going into the lib|Documents and deleting the oldest folder of the same name. Then went to W10 (thru Network) where I had made a copy of W11 and synchonized W10 to W11.
Then I changed the Favorites from Library | Documents to Owner | Documents
I wouild think that W11 would be a fix to W10, but it is not. I have 4 monitors, all greater than 40". Old eyes.
System font is too small and I can not increase the size of it.
Opus Preferences are too small and I have to get within 8" of the 40" screen to see the words. I do not see where I can increase to size of the fonts for Preferences.
Other screens I have increased the font size to 13-15