Epix (Gen 2) Sapphire YouTube music premium not showing any playlists - not connecting to my account?

I have a Youtube Premium account but I'm unable to see any music playlists on my Garmin Epix (gen 2) watch despite supposedly being connected to my YouTube account.

What I've done so far:

1) ensured my wifi is connected to the watch (my wifi is fairly good speed)

2) have Garmin Connect and Garmin IQ apps on my phone

3) synced my watch with my Mac mini pro m2 on Garmin Express

4) loaded Youtube Music onto the app and my phone

5) connected my Youtube account with Garmin by entering the code

Despite these, no playlists whatsoever show on my watch. There is not indication that it's even linked to my actual Youtube account.

I've uninstalled the app several times. I've reentered the connect code several times. I've restarted my watch a few times. 

Nothing has worked or made any difference.

Anyone else have an issue like this or actually get it to work?

I've watched videos by dcrainmaker and it should be easy; unfortunately for me it simply doesn't work.