Was it said/shown that she became a jonin ? I thought she was a chunin in Boruto. I don't think she may be sent on missions and stuff ,it looks like she gave that up and became a housewife. Plus with the new powerful villans coming up and all ,she may not be given enough screen time to showcase her skills as jonin on solo missions and all. She isn't that strong anyway ,most of the konoha 11 looks like they surpassed her in skill or power and she wouldn't last against otsutsuki members in combat
I don't think Hinata is jounin. I think Kishi once mentioned (I can't remember where though) that the only people in the Konoha 11 promoted to jounin were Neji during the second chuunin exam, Shikamaru and Sakura after the Fourth Shinobi War and Lee in Gaiden. Besides, I think she gave up on being a ninja to be a housewife and she isn't seen going on missions or anything. I know Sakura owns a clinic so I think she's specifically a medical-nin, we saw Ino in Gaiden with the Konoha flak jacket so she must've went on a mission, then Temari still using her fan on those giant falling rocks in the chuunin exams which probably means she's still a combatant kunoichi so I think Hinata's a retired chuunin and housewife now.
I want to believe that they are all Jounin just like what in the Anime said during the Wedding Gift mission it said that all their friends are now a Jounin. And shikadai said Shino Sensei is a Jounin in one of the episode. i really hope they release a new databook! So that it would be clear...the databook saying they are chunin was just after the war, but they got married 4 years(?) after, so many possibilities that she became jounin :) i just love her so much that i want to belive all positive🤣