My father says that I should charge my newly purchased notebook 1 day before using it because otherwise the battery will break, which I don't think. Is it true? Or not?
This is a holdover from the past. You no longer need these days
If the battery is as big as your couch yes. Otherwise not
Yes, nice greetings to your father, that was 15 years ago.
This is no longer the case.
But before using it for the first time, I would still charge it, but it only takes about 1 to 2 hours.
My father says that I should charge my newly purchased notebook 1 day before using it
A whole day? As long as nowadays it doesn't need a battery to fully charge. That was perhaps 20 years ago when your father had his first laptop.
because otherwise the battery will fail
No, when the Li-ion battery is full, it is full.