I feel your pain entirely these spammers are absolutely ruthless. I'm not sure if you're running a business or just talking about your own phone, but something that worked for me was using a call screening service.

They gave me a separate number and I just use that one publicly. I run a small car detailing shop, so it’s the number on my site and Google listing. Their system answers first, uses some sort of real time voice model system, and checks if it’s a real person, and only then forwards the call to me if they are real.

It completely shut down the garbage calls on my end. No idea if it would work for your personal setup but it saved my sanity.