Are online CPR classes acceptable for for BLS/CPR renewal?

It really depends on your role and your job requirements. However to get certified or renew a certification in AHA BLS, you will need to complete an in-person evaluation of your skills. Some places offer a hybrid class where you go through the content online at home. But you will be required to have an in-person exam regardless.

I don't know. Everything has gone South since Covid. I think you still need " Dummy time." To get a card or printout. Check your local area.