The assistant integration is great for this reason too. I occasionally get calls come through that are likely SPAM but I've learned to let the assistant answer for me. If it's a spammer, then I waste just a small amount of their time.
It's especially helpful that Google's Assistant has gotten good enough, AND that people making legit but unsolicited calls (like doctor's offices), that people calling don't hang up right away and actually answer the assistant. So I can see what they say and then answer when it's a legit call.
The ratio of SPAM calls to legit calls from unrecognized numbers is still higher for SPAM. But, the frequency is low enough (maybe a few a week), and dealing with them is so easy, that the distraction/annoyance factor is very low to the point that I'm not personally bothered by it anymore.
I've tried to get my grandma to switch to a Pixel phone for her main phone number at home, just for SPAM blocking, but she won't. I don't know how she stands getting multiple calls per hour, it's crazy to put up with when we are there.