Had you moved them to the SD card in the S8? If so, only the directory entries and links transferred, the apps couldn't, since they're not listed in the card's directory (only in the file allocation table, so they don't get overwritten), so they never got transferred. You can't uninstall them from the Note 10, because they're not installed, but you can't install them because they're in the directory. So you have to do a factory reset in the Note 10, and move the apps back to internal storage in the S8,
then use Smart Switch.
If there's no room in the S8, choose data first (music, pictures, videos, etc.), transfer them, delete them from the S8, then move the apps back to internal storage. If there's still not enough space to put them all back, choose apps that don't keep data, create apks of them (you can use
App Backup & Restore), then uninstall them.
Then move the remaining apps back to internal storage. Once all the apps are back in internal storage, use Smart Switch (it should switch App Backup & Restore also - you can manually copy the App_Backup_Restore folder if it didn't copy over), then restore those apps in the Note 10.
Or you could try factory resetting the Note 10, starting the setup process again, and when it asks about copying from another phone, let it copy from the S8. (t takes a minute to set up, then it copies over WiFi in the background as you finish setting the phone up and start using it.)
(This is another reason to
not move apps to the SD card to the point that you have no space left in internal storage to move them back. It makes changing phones a nightmare.)