What's the best way to download and access music & podcasts?

I'd love to get my music and podcast library accessible locally. I'm an Apple Music user at the moment and have a fairly extensive library but probably no more than a terrabyte if all downloaded lossless. I might be being silly by grouping music and podcasts.

I have a Plex Pass and would like to test out Plex Amp. Is this also compatible with podcasts?

I am a fan of the \*arrs and would ideally be able to run my music and podcast downloads through here. Can anyone give some insight in to the usage of Lidarr for downloading an existing Apple Music library and for downloading podcasts?

Having done a little reading, it seems Lidarr isn't set up for this use in mind, it's primarily about music and the methods for searching and adding music aren't designed for someone to pick and choose singles like I would ideally be able to do. Still, I would appreciate if someone could point me in the right direction here!

Edit to add:

I have Lidarr installed and configured, I just haven't pulled the trigger on any downloads yet.