Alternative for password input after already logged in

First of all. I'd like to say I love Briar. But, after being logged in, the app asks after an x period of time (days) again for the password. I have used a generated password which is not convenient to fill in. This feature unfortunately holds be back for further usage. I can imagine this is the same for other people.

Can perhaps alternatives for a password be considered? Such as a pincode or a fingerprint?