Returns nothing: 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Yes, the Buster upgrade seemed fine, but I had the problem where Yunohost was still stuck on 3.8.8.5, I followed these instructions: Yunohost service do not update to v4 with Buster - #4 by tonton
And had to manually restart yunohost-api… so yes it’s possible the installation didn’t finish