I believe only until the bank does some initial plausibility checks at first.

Actual dispute resolution can take quite long and you’re not even directly dependent on the outcome. For example, if you lose a card and it gets used in a physical store fraudulently, your bank will most likely not be able to win a dispute, but they’ll usually still have to reimburse you.

The thing that matters to you as the cardholder is only fraud liability; if and how your bank is made whole by the merchant is their concern. That’s the same across credit and debit.