This is a request for a setting in the desktop app (e.g. Windows) similar tot he setting “Ask for biometrics on launch” contained in the browser extension.
This would mean that when launching the desktop app and it’s locked, it’ll automatically ask for biometrics (e.g. bring up the Windoes Hello window in Windows) rather than having to press the Unlock with Windows Hello” or similar button.
One place where this would be useful is when Bitwarden is linked with Windows Hello. If you choose to login with a passkey stored in Bitwarden via Windows Hello linking, you just have to enter the biometric credential rather than having to press the “Log in with Windows Hello” or similar button. This would make Bitwarden like other passkey managers (e.g. built into browsers or the operating system) which just ask for the biometrics or other credentials.