@mdeherder Hi!
See here: Biometrics
(and in the there cited Reddit thread, a Bitwarden developer (" rmaccallum_bw") wrote on May 23, 2024 to this:
"This is expected new behavior to protect the encryption key stored by the desktop app, which is used for biometrics, from being used unexpectedly.
The team is discussing solutions to allow this flow in a secure way.")