Thanks for the screenshots! 6 albums is a lot less than what you can view in iTunes but the large artwork looks nice, and it’s great that the blank sides as mentioned by Traverse seem to have been removed!
How does it look when you click on an album in Big Sur? I know that the drop down menu is replaced by albums opening on a new page, but does a long album display like in your second screenshot of iTunes, where the album is divided into 2 columns or vertical rows of tracks on big displays or is it just one column or vertical row in the middle, like in Catalina?
Really worrying about the artwork though, I have over 2000 albums so not looking forward to manually add every cover. I added every cover myself and never used iTunes automatic cover download feature so maybe that makes a difference?
Another question would be, metadata, like play count, have there been any issues with that?