Change owner husband deceased

Hi, My husband died and was the owner and I was a shared user. Although I used my iPad with his login. I still have complete access to his cell phone and all passwords. Do I only need to change his email address & phone # to mine? Then when I eventually delete his cell phone etc.? I shouldn't really need to re set up the ring doorbell? I see posts saying both ways, either just to change email or how to reset up. And I couldn't log into the forum. I first logged in Oct 2022 but only had a username. Now it wants email & password. So I used his email and password.