Could be an indicator of ADHD - or not, we can't diagnose online but my DS was starting to show signs of not growing out of this as other peers were at 7 (he has ADHD )
Regardless though there is lots to do without diagnosis or even if there turns out nothing unusual:
Google 'proprioception' and also 'sensory diet'
It's all about providing opportunities to satisfy sensory needs - thus allowing other parts of life to continue less disturbed
Try:
Fidget cushions
Our Tripp Trapp chair is still used by DS (14) as they convert to extremely stable adult chairs and aren't easily rocked (if he sits on a normal chair at meals he still rocks back and forth)
Making safe opportunites for sensory play - running, jumping, resistance and pushing-pulling type things before trying to sit and watch a film
People say trampolines are useful but for us DS could never be safe.
Weighted blankets
Deep pressure - massaging hands or feet can then fill the need to fidget (this is part of routines occupational therapists prescribe which they call a 'sensory diet' but you can do this yourself.
Managing your expectations - if XYZ child (even another of your own children) can be expected to out down an absorbing activity without fuss, go to an activity they aren't familiar with without persuasion, or leave the house without any problems, doesn't mean this child can.
We knew DS couldn't follow a star chart successfully and that never worked for us, we had to manage what we expected him to do.
This also includes managing instructions. Know your child and how much they can take on. Some kids can only do one thing at once and if you ask them to put shoes and socks on it just won't happen. Test what she can manage and cut your cloth accordingly
This means that you can then heap loads of praise on when she exceeds what you normally expect
None of these things are a bad idea even of your DD is perfectly neurotypical.