Version 2.4.8 of App Tamer is available. It now explicitly supports the new Music app in Catalina, meaning that if Music is playing something, App Tamer won’t slow or stop it even if it’s in the background.
This release also adds support for Google Chrome ‘Apps’, which you can create in Google Chrome by using the More Tools > Create Shortcut item in the “…” menu in a Chrome window. If you select “Open as window” when creating the shortcut, Chrome creates a separate application that relies on Chrome to render its window. That means that App Tamer needs to (and now will) keep Chrome running, rather than slowing or stopping it, when you’re using one of these separate Chrome apps.
And finally, version 2.4.8 of App Tamer also corrects several issues with its process control mechanism that could result in it not working correctly after your Mac wakes from sleep.
Full details and a download link are on the App Tamer Release page.