Earlier quoted context omitted.
I use an app called AdBlock https://apps.apple.com/app/apple-store/id691121579?pt=425087... It creates a local VPN that sets up a local filtering DNS. I just added the following domains to the block list: facebook.com fbcdn.com fbcdn.net fbsbx.com fb.com
That's very interesting. Does Android have anything similar?
Also you can configure a non standard DNS (like adguard, which can block some things at the DNS level).
EDIT: or NextDNS, since it comes with some additional features.