my prevented trackers is over 160, is that good?

Without naming names, you can clearly see what sites are trying to track you the most and if you don't think sites should treat their users as a commodity, then you should avoid those ones. Be thankful that Safari is stopping this behavior. I don't necessarily fault all sites that provide trackers as they do make their information available for free and recoup the costs through those targeted ad, but you can clearly see the worst offenders and you do have the ability to do something about it.

It's nothing to be concerned about; it's just a fact of life.

As a Mac user, you are incredibly wealthy. Fabulously wealthy. Probably in the top 10% of the world's population, at least. That wealth makes you an prime target for people who want to track your every move so that they can sell you stuff.

Congratulations!

Learn how the Safari web browser protects your privacy:

https://www.apple.com/safari/docs/Safari_White_Paper_Nov_2019.pdf