A newborn eats every 2-3 hours -- doesn't have a stomach large enough to eat less frequently than this and is used to getting its nutrition continuously.
That's measured from start-to-start of sequential feedings, not end-to-start. Baby might be slow to eat, especially if breastfeeding -- baby is learning how and gaining strength to suck, mother's milk is coming it but may not be quite there yet -- so feeding could easily be 45 mins. If mother is really having trouble with milk she may use a pump afterward to try to get her milk to come in better, and baby may be supplemented via bottle, another 15 mins if you can overlap these things. We're down to an hour left to hit that two hour window, in which to get baby back asleep, maybe have to burp baby, maybe change diaper, maybe wash bottles.
It's very possible to have 0 minutes of downtime between feedings for multiple feedings in a row and it is relentless. I fell asleep standing up multiple times, not only did I not have time to meditate, I can't imagine I could have done it without falling asleep.
I hear some newborns are easier, so maybe you actually get 1-2 hours at a time, but that still must be brutal. Having a low total amount of sleep is one thing but never getting longer stints adds a whole other dimension to the problem.
That's all newborn stuff of course, it should get easier by two months. But that's what the parent of a two month old may be emerging from and is a starting point you might wish to consider if you seek to understand what some parents go through.