I visit Facebook a couple of times a week. I san't measure how well this app blocks FB tracking but I can say that it is invisible as I use it. Response time hasn't been changed and I can access all websites without problems. My VPN, on the other hand, does cause me some connection issues and delay. So that's the benchmark I'm measuring against.

en effet, j'ai constaté que Facebook n'intervenait plus dans mes activités sur le web.