Interesting. I never have any problem with spam.

My account is ancient; every spammer in the world knows it.

But practically no spam gets through. And there are very few false positives. Going though my spam folder, I see a few legitimate commercial emails that I don't care about, but the rest is junk.

Most of it is being dropped on the floor without even getting into the spam box. I have only 65 emails in my spam folder. A few years ago, there were tens of thousands. I don't know what they did, but at some point they clearly started rejecting the worst of the worst, i.e. the vast majority of it.

I have no idea why your experience is so different. I'm on a Google Workspace; perhaps that's something?