I may be missing something, but I don't see a way to use the macOS app to scrobble to Last.fm from Apple Music. The only source I see under Scrobble→Sources is "Friend".
I am using Finale for Last.fm 3.4.2 (41) from the Mac App Store on macOS Sonoma Version 14.0 (23A344) on a 16-inch 2023 MacBook Pro (Mac14,10) with an M2 Pro processor.
I may be missing something, but I don't see a way to use the macOS app to scrobble to Last.fm from Apple Music. The only source I see under Scrobble→Sources is "Friend".
I am using Finale for Last.fm 3.4.2 (41) from the Mac App Store on macOS Sonoma Version 14.0 (23A344) on a 16-inch 2023 MacBook Pro (Mac14,10) with an M2 Pro processor.