hide affiliate url

I was buying traffic from one of the push notification service and found out that they're sending adult traffic as well and it can be easily seen on similarweb or GA4 dashboard. Is there any way that I can hide referrer url source? Is there any free ways to do this? Like implementing few lines...

Hey Guys, I would like to repeat unsolved question again... Is it possible to hide affiliate details from advertiser while bidding on Trademark terms? You know, There are many search spiders available to monetize trademark terms. So, I would like to request help from PPC Blackhatters.... Thanks,