If you are looking for some great #privacy resources and communities, here they are. Techlore and The New Oil are both very active on Mastodon. Luckily, Nostriches can follow them on Nostr thanks to Mostr (a bridge between Nostr and the Fediverse).
Techlore has a very active forum while The New Oil has an active Matrix group. Links to both below.
Finally, the Privacy Guides website does a great job of explaining the whys and hows of online privacy.
Privacy Guides
https://www.privacyguides.org/en/
Techlore
https://www.youtube.com/channel/UCs6KfncB4OV6Vug4o_bzijg
https://discuss.techlore.tech/
https://primal.net/p/npub19fegnkgeehfa9xmaycr465rnpe0znwexvq5cjnuaxtgvll4gsslsc0lnf6
The New Oil
https://www.youtube.com/channel/UCH5DsMZAgdx5Fkk9wwMNwCA
https://matrix.to/#/#thenewoil:matrix.org
https://primal.net/p/npub1la7g5cwlaghz3xjrll5cfv5gyhvcpcvrvy453m26w0hl0mdryjqs8hd04n