MANY sounds better in negative contexts. “My son doesn’t have many friends.” In questions of this type, the use of MANY may imply that the speaker already doubts that he has A LOT: “Does you son have many friends?” (=I suspect he doesn’t)

Uliy, does the word much work the same way?

кстати, Улий это сокращенно от Хулио? а Акимов истинно Леопольдович? или это прикол был?

Yes, it’s the same with MUCH. A: Andy doesn’t spend money on advertising and he doesn’t go to networking events. B: OK, but does he get much work?