A little off-topic, but I thoroughly enjoyed watching my Knicks win the title. One of the running narratives was that Wembanyama didn’t have the endurance to play for an entire game and needed frequent rest. So, would he have benefitted from intaking carbs during the game? I don’t know how NBA athletes deal with nutrition, but it seems like a glaring hole that should be addressed. Thoughts?
Yes, they should be consuming carbs.
Games last 2-2.5 hours, and players are definitely burning glycogen.
You’re almost always burning some level of carbohydrates, and it starts to really increase when your HR gets above Z2, which is probably pretty common for most players.
Do they need 120g/hour? Probably not, but those guys are pretty big and are likely burning a lot of calories, so who knows?
I’d love to see a study done. 
I have heard the question raised when it comes to soccer players in a sports nutrition podcast. Players should and apparently do consume e. g. gels. Professional soccer players (sans goalie) run 8–12 km, the precise averages depend on the position. They’d of course benefit from carbs.
I can’t see a reason why basketball should be different.
As for the amount, long-distance runners to my knowledge consume less than cyclists (ditto for triathletes during the run vs. during the bike leg).
I think runners are catching up.
Top-level marathoners are above 100g/hour now, and some winning ultra racers are well above 120. 