What happens to website traffic after revoking an ssl certificate?

Question

Digital certificates

I don’t quite understand the essence of how SSL certificate revocation works, when a certificate is revoked, it gets into the list of revoked ones, and the connection to the site is marked as unreliable and when you try to go to it, a warning about an unreliable certificate pops up. And what happens to the connection itself at this moment? Does it remain the same https or is the site already working via http, which means that all traffic transmitted to it can be decrypted?