Migration assistant didn't transfer all of my folders
I used migration assistant to move from an older MBP running Mojave to a new MBA running BigSur. Immediately I noticed I had about 100GB more free space on the new Hard Drive than I anticipated. My home folder was copied but renamed, with an _1 appended to it's name, and the Desktop, Documents, Music, Movies, Downloads folder is inaccessible from the finder sidebar (error says "Documents/Desktop etc. can’t be opened because the original item can’t be found.") However, when I navigate to User/Documents folder it shows my files are there. This is true only for the Documents folder, all others I mentioned are empty.
The Applications folder was copied successfully however and works fine. I suspect the issue might be that I first created a new user account on my new MBA with the same name as the one on my old MBP. I told migration assistant to cancel it during the migration process.
How should I best fix this? Do I copy my files manually? I would also like to get rid of the _1 on my user name.
Thanks in advance!
Robert
MacBook Air 13″, macOS 11.0