YES!
It's all for the camera. Once that camera shuts off, she instantly become just as much of a bitchy ass know-it-all as Tim is.
I had started to notice her evolution back when we were watching more regularly and it seemed to start when they were getting more #hosted with the big dog aka Disney, she slowly morphed on camera into this total dumb persona where she became this meek and mild "Disneyfied" sort of "aw shucks..." "is this how you do it?" "ooowwwww" [insert stupid laugh], head-tilt, gazing-at-herself-in-the-camera person who constantly would ask the stans what they thought, or how to do something, or if something she did was wrong. Coupled with the gazillion "sorry!" "sorry!" "sorry!" comments that she'd keep saying all the time.
She was a completely different person in the earlier vlogs and I don't think that person disappeared. Nor do I believe for one second that the woman who frequently berated Tim on camera (or in podcasts) over the years, and ruined his fucking marriage proposal plans by being what she termed herself as a "bitch," is cowering in a corner scared of a Mr. Hyde version of Tim when the camera goes off. (I mean, Tim is a jackass control freak when it comes to J., but I think TIM is the one cowering in a corner scared of JENN; it's not the other way around)
This whole checking with Tim about the pancakes to see if she's doing it right is all an act.
It makes Tim feel like "the man" (old-timers will remember that reference) for a very short instance on camera while it ALSO cements this image of "poor little naïve Jenn" to the stans. (remember when - at the height of their Disney #hosted era - stans would say she was so innocent and pure? LMFAO) When we all know who is REALLY in charge in that household.
Same with saying that shit on camera about "not making the pancakes right so they have to wait for Daddy to come down." ALL said for the camera. ALL said for sympathy. Typical martyr / victim routine and she's got it down to a science at this point.
And I don't buy that she's regressing mentally to forget how to do basic things.
She's doing the bulk of what she does - and says - on camera
on purpose, and with purpose.