Just a techie guy running feddit.online to allow people to communicate, make friends and acquaintances. Odd coming from a happy introvert, right? (https://jerry.hear-me.blog/about)
I also own these publicly available applications:Mastodon: https://hear-me.social/Alternative Mastodon UI: https://phanpy.hear-me.social/Peertube: https://my-sunshine.video/Friendica: https://my-place.social/Matrix: https://element.secure-channel.net/XMPP/Jabber: https://between-us.online/Bluesky PDS: https://blue-ocean.social/ (jerry.blue-ocean.social) Mobilizon (Facebook Events Alt): https://my-group.events/and more...

You don't send them the password. The password never leaves your device. The password is the decryption key to decrypt your encrypted private key, which is what they send to your device. This is why, for Proton Mail, and others that use this technique, it is imperative to have a strong password to protect your private key.