Another workaround users are using: https://musicat.fm/notes/b1207d86-772f-4a3e-bf8b-69041f9a24da

Some users report that after removing songs from their library and restarting the Apple Music app, those tracks start getting tracked again. This definitely looks like a regression. https://musicat.fm/notes/74dc4bb7-7b6a-4d28-8b88-af5a69fc8048 https://musicat.fm/notes/689e4212-8125-42ce-8d42-a473d9ef8c5e https://musicat.fm/notes/a9b367a7-e6e0-4aff-b98f-f80892bc687c