Is the block account for Germany visa purposes such that the government releases a few euros monthly into the student's account?

No, the German government does not release funds from your blocked account (Sperrkonto).

Instead, after you deposit the required amount (currently €11,904, subject to change), your bank releases a fixed monthly sum - €992/month - to you for living expenses during your studies. The funds remain in your name, and the bank manages the monthly disbursement.

If you need guidance on setting up your blocked account, your LeapScholar counsellor can assist you.