[wsgreen]

Pretty sure bank apps do this for fraud prevention. Preventing criminals from stealing your money is pretty altruistic

[loeg]

I don't think I've ever had to type a sentence into a bank app, much less 30-40.

[rococode]

You've probably typed a username or password hundreds of times though, or at least a fair portion of their userbase has. "This user normally types their password in 3 seconds but today they did it in 0.2 seconds" is a reasonable way to raise a red (or at least yellow) flag.

[loeg]

I pretty much exclusively use 1pass, so there's not much information there on the bank fill side of things.

[zxcvbn4038]

No, banks won’t do this, most banks still struggle with basics like storing passwords securely.