Yes it works well for Big Sur. I have had vvery little problems using Big Sur compared to when I was using Catalina. You just may have to reinstall the game as there was a microphone issue when I first got it but after that its good to go.
Some champ made it super easy to convert pc files to mac, just go here and download.
https://www.reddit.com/r/rocksmith/comments/kriwi1/converting_cdlc_from_pc_to_mac/?utm_source=share&utm_medium=web2x&context=3
Also Big Sur works great, just had to reinstall the game for the microphone to work properly.
Can someone please explain a step by step guide as to how to get the toolkit to work on Catalina? I've been trying for months since to get it working but still keep getting the message that it can't be opened because the file damaged.
I can't thank you enough for this, I've been shut out for months and finally got it working tonight. Hero of the year so far! How did you get it working? Mine keeps saying it can't be opened because it's not responding. Have tried the terminal tricks but still have had no luck??