It does depend on different people, but yeah peak hunger is around 2-5 days in (again depending on multiple things) so doing multiple 3-5 day fasts just seems torture to me when you could've done a longer one and not be so hungry in the process. I have done three 10+ days fasts (trying not to get stuffed just before) and usually at 2-3 days is the peak. Days 4-5 are also hard, and you might get a punctual "hunger pang" much later on depending on what's going on (e.g. walk by a pizzeria), but overall nothing at all compared to day 2-3.

This is based on the experiences that I've seen (as my comment before) derived from reading 10s-100s of people's experiences about fasting on Reddit groups over the years. Not scientific, but also not taken from thin air.