Uncensored Un-Age Gated Communication Methods(Ranked In Order Of Most Private To Least Private)
Quiet is a very private peer to peer platform that uses the TOR network to anonymize users.
Steam chat is the platform closest to Discord in usability and privacy(pre age verification). It is centralized(on Steam servers), so is more vulnerable to attacks than most peer to peer messaging apps. Can be used for most applications but should NOT be used for anything sensitive.
Privacy Centric Browsers/Browsing Tools
TOR is by far the most secure browser and privacy tool because it completely anonymizes your connection and allows access to webpages not able to be hosted on the clearnet(the portion of the internet accessible to most people).
Opera is a very good browser that offers a free no logs VPN, anti-tracking, and ad block with a good mix of privacy and convenience(built in password manager and mobile app). Just need to be sure to enable the VPN in settings.