EBF baby & sleeping FTM

I have always fed my baby on demand. And he's always been a snacker. This does make doing things difficult since he also won't take a bottle. So we stay home and we snack 😂. My mom is a very. Very. Opinionated person who believes she is correct about everything and she is claiming that my LO needs to be sleeping through the night and going at least 3-4 hours between feelings during the day. He's 12 weeks old. We're up every 2 hours almost exactly every night and he cluster feeds almost all day most days. None of this bothers me as he's growing and thriving and I'm a homebody anyway. Can anyone give me some reassurance that this is normal and I'm not messing up somehow? She really seems to think I'm doing it all wrong. (She never EBF btw and seems to think it's all the same)