Things that have helped about not working with an ND school age child, in my case:
Being available to pick up child when school called, or even keep her off school all day if she was in a bad state and I suspected something bad would happen if she went in
Being available to deal with emails/calls from school in a considered way, rather than hurried between meetings
Being able to speak to my child at school pick up time, especially about any behaviour type issues, rather than not until later when she was more tired and harder to have a constructive conversation with
Seeing my child at times of day she was at her best, not only at the difficult/stressful bits of the day (ie getting ready for school and bedtime, which is all I got when working)
Being able to do a lot of admin/prep stuff during the day - eg prepare tea in advance, pack DC kit for next day, so as to be more available after school and could respond better if DC kicked off.
Being able to use quieter time in the day to recover from poor sleep (this was frequent until a few years back) or from big emotional meltdowns which were very draining.
Being able to support DC in getting more exercise and social practice (eg more non school clubs, playdates) and eating well
Obviously, medical appointments and researching and implementing things that will help (supplements, physio in our case)
It was undoubtedly helpful at the time to have me not working, and reduced our family’s stress immensely. DD is now doing brilliantly.
BUT - a big but. As she is doing so well I am now looking at getting back to work and it is pretty soul destroying tbh. Options are very limited and I wouldn’t have the flexibility I’d earned before I stopped. If you have a way to keep working even in some very minor way then do, to keep your options open for later. Unless you have the kind of job that you can always go back to.