Every bank has a "List of prices and services" for this purpose. This states "Free of charge for incoming money of at least €700 per calendar month". The corresponding asterisk text then states "'Excluded are securities transactions, own transfers and credits from the booking of return debits."
This means that it is not free if you transfer money yourself.
@GoDividend I have a private credit card, as does my partner. Plus the current accounts. Honestly, I can't remember any more pins 😃 Apart from the fact that the €2/month doesn't really matter for us.