Bitwarden Supports Argon2

Only on the web version for now[1]. Will definitely switch to this when all clients are supported.

[1] https://www.reddit.com/r/Bitwarden/comments/112onwn/argon2_s...

WARNING: I just enabled this and the Android app aborts as soon as you try to login. You CAN switch back to PBKDF and be back in business.