No, every Hyuga are simpily born with the Byakugan, but the very fact that Kishi had forgotten to give them proves my point here, also excelling and release chakras from tenketsu are pointless if you are not pure blooded Hyuga and without the byakugan, Bolt had some hybrid form of Uzumaki & Hyuga but Naruto genetic completely overwhelmed Hinatas which render everything useless.
I think you're overthinking too much, Bolt hair, his face, his persona, etc is almost exaclty like Naruto likewise Himawari to Hinata simpily because Kishi loves to make everything redundant, repitition is Always Kishi speacility
You seem to be saying that if you look and act mostly like one parent then you completely lack the genetics of the other. That is your error. Genetics may influence personality, but personality does not affect your genetics.
In other words, it wouldn't matter if Boruto was indistinguishable in appearance from Naruto and went off shouting "I am going to be hokage and eat ramen and beat Sasuke-teme dattebayo". He'd still be part Hyuuga. He could get his first name legally changed to Naruto. He'd still be part Hyuuga! He could extract the bijuus, Hagoromo's, and Asura's chakaras out of Naruto and put them into himself. He'd still be part Hyuuga!!! He could renounce all connections and sever all bonds with Hinata and her side of the family. He'd still be part Hyuuga!
No matter how much like Naruto he is or how much like Naruto he ever becomes, at the end of the day he is still part Hyuuga period!!!! Your appearance and personality don't determine your genetics!! Not all of your genetic traits can be seen in your appearance or even your personality!
It could even be something as small as, Boruto's favorite foods are cinnamon rolls (which are one of Hinata's favorites). Either way he is both Hyuuga and Uzumaki!
P.S. I am not saying that this means that Boruto will awaken byakugan, but you and many other people are wrong to think that if you look and act mostly like one parent that your genes are completely the genes of that one! Humans reproduce sexually! Also, it was never stated that you needed to be pure blooded Hyuuga to release chakara from the tenketsu. You don't actually need the byakugan. The byakugan just lets you see the tenketsu. If you are smart or skilled enough to find and memorize their locations on your own through some other means, then you don't need the byakugan. Boruto was called a prodigy, so that may be feasible for him.