Nukecraft5419 Discord is not recommended for privacy, so we probably won't do it. There was once a Revolt group, but it was disbanded. An option could be to use Session, because you only need a random and anonymous ID that the app generates for you, nothing else, but I insist, that is something that should be decided by the administrators.
About Bitwarden, I have not heard anything about what you said. Maybe you are confusing it with Lastpass? I don't know.
Finally... it is true that Apple respects the privacy of its users better than Microsoft and Google, but seriously, I advise you that if possible, try to look for privacy-oriented alternatives even within the Apple ecosystem, or try to get out of that ecosystem as much as possible. Just a piece of advice.
By the way, about the softwares that I have mentioned and are not included in PrivacyTools, I point out that I am responsible for the recommendation, and that they have been independent recommendations to PrivacyTools. It is true that I have taken a look at them, but I don't know if they are really good in terms of privacy, so in the case that after a deeper analysis they are not, I apologize and declare myself fully responsible for my own statements. Greetings.