Use invidious - https://invidious.private.coffee
Use revolt - https://revolt.chat
Use matrix - https://matrix.org
Use LINUX! - https://www.linuxmint.com
Sources: https://invidious.private.coffee/watch?v=1yUj_Jdis6E
https://redlib.kylrth.com/r/discordapp/comments/11ihqq6/discord_will_possibly_record_your_video_calls/
https://redlib.kylrth.com/r/privacy/comments/jlggdx/how_much_of_a_privacy_concern_is_spotify_nowadays/
You can use Libredirect, an extension that redirects you to privacy-respecting alternatives to websites, and update it in the settings to make it automatically open in Freetube. https://addons.mozilla.org/en-US/firefox/addon/libredirect/
Thank you