Separating Settings on Two Devices

Sharing an Apple ID stopped becoming useful and because a pain in the butt when iCloud was expanded about 5 years ago. Apple strongly recommends not sharing an Apple ID, but instead sharing content other ways. But if you don’t take Apple’s advice you will continue having assorted problems. Apple IDs are personal; they shouldn’t be shared any more than you would share a toothbrush. If you share an Apple ID with someone else many bad things will happen. Each user should have their own Apple ID, then you can create Family Sharing→What is Family Sharing? - Apple Support. That way you can share what you want to share and not share what you don’t want to share.

It is OK to share an Apple ID among devices used by one person, such as an iPhone, an iPad and a Mac; in fact, it is a very useful thing to do. But not between devices used by different people.

Here is Apple’s FAQ: https://appleid.apple.com/faq/#!&page=faq. See the 4th bullet item.

Have you tried turning off Share across devices ?

Sharing Apple ID will always throw up problems and it isnt advised but if it suits you then try turning off everything in iCloud settings you don't want to share. Focus isn't one of them.

I have an iPad & IPhone. I used to be able to set each separately so I could listen to music or podcasts undisturbed on my iPad while getting notifications on my iPhone. Now, I can’t.

[Edited by Moderator]

Have you tried turning off Share across devices ?

I can. So there is probably a setting that you changed.