Hi @Kevin 22 and welcome to the Sonos Community!

Sorry for the delayed response, I can confirm that adding a music library from a Mac running Sonoma 14.5 should be supported. I see that you were in touch with our chat support regarding the music library and were encountering some errors when trying to add the library, are these still occurring? If so then it may be worth trying to reach our phone support to talk through some additional steps to resolve the issue, the phone number for your region can be found here.

I have been in touch with support and they have help me, I now have access.

Thanks