They have this feature on the phone apps but not on desktop. I find that album radio is a lot more focused, and does a better job than artist or playlist radio.
And in order to get to album radio, you have to launch it on another device and then switch which device you are listening on. Each time you want to change. Or to go back to that same radio.
It seems like it is a feature elsewhere, and it should be on the other platforms.
I have confirmed with tech support that this is not a bug (on my end or universally), and currently the intended function.
Updated on 2020-09-17
Hello @professor_pbr and thanks for bringing your feedback to the Idea Exchange.
Just to make sure we are on the same page, I've also checked here on my phone and there is no "Album Radio". You can access the "Go to Radio" from an album menu that takes you to the artist radio (This feature is also available on desktop too). Could you share with us a screenshot from the "Album Radio" you're mentioning? Any other information you may give us would be very useful too.
Thanks in advance!