This is such a weird take. Nobody is saying he is exactly like Pogba. No player is exactly like another. They're humans. A comparison is only meant to clue in some fans who haven't seen him as it's a rough comparison. Saying Bellingham is like Pogba doesn't mean he's Pogba of today where he regularly puts a ball over the top for his teammates. Pogba didn't have that in his locker consistently as a kid. We didn't see Bellingham play for the academy like we did Pogba. What we have are u16 and u17 matches for England.
Yes he does play on the advanced left side of the midfield. He does have this stroll like Pogba has. Similarly he does have some good footwork to get himself out of trouble or to start an attack. Yes he can dribble past players. I haven't seen him score belters that Pogba used to, but then again, I haven't seen him play at u18 and u23 level for Birmingham. They're in different situations and thus we as watchers don't have as much evidence as we would for one of our own youth players. You're comparing the amount of footage United fans could use of Pogba as a 16-18 year old playing for United's u18&u21 level. It's an unfair comparison.
You're essentially saying "Hey, why didn't 15 year old Bellingham have as much highlights as a 3 year period of Pogba playing for the u18s and u21s at age 16 to age 18?"
Remember, when people make comparisons, you have to pigeon hole players into groups. He's more like a Pogba type than he is of other midfield types right now. That's not controversial