Provide Netshield option for parental content filtering (e.g. username+f3)
It does not seem possible to use DNS based parental content filtering when connected to Proton VPN and it's DNS servers.
Add family filtering as an additional NetShield option? e.g. +f3?
Proton generally needs a customizable DNS service like NextDNS, but in the meantime, you can set a custom DNS in their Desktop client, but only there and only IPv4.