This is for reference:
https://bisq.wiki/Backing_up_application_data
https://bisq.wiki/Restoring_application_data
https://bisq.wiki/Data_directory#Default_Locations
First, you need to install and run Bisq for a few seconds (remember that mac will tell you that bisq is damaged), until user data folders are created. Then you’ll need to copy the backup into user data folders.
Seed words would have to be used only if the backup does not work, it’s the last resource to at least get the funds in Bisq wallet.
Are you able to get the backup file?
Copy the backup file into /Users/<username>/Library/Application/Support/ and rename the backup file to “Bisq”.
If you can’t get the backup file, you can do a similar process by copying the Bisq folder from the old macbook at /Users/<username>/Library/Application/Support/ and copy it at that same spot. You won’t even need to rename the folder.
PS: The second method is preferred, it will have the more recent state.