What would be the best thing to paint newly cut chipboard with to lock in the VOCs from any formaldehyde glues....? There are products that come up in a search, but nothing local that I can find.
"Locking in" VOCs smells suspicious and possibly scammy. A lot of VOC molecules are small and volatile (as per the name), so they will diffuse through thin layers of things like paint.
Paints emit VOCs too FWIW.
It might be better to ask a chemistry forum, they'll be able to give you reasonable answers and suggestions, not hearsay (like what I'm giving) or marketing (what the salesmen say).
In the mean time if you're worried about VOCs: ventilation prevents buildup, reducing exposure.
edit: basically: you can't seal it. It'll just degrade. And any sealant will probably offgas even nastier shit. It's a low concern tbh, unless you're talking a hermetically sealed cabinet. Air exchange happens enough to take care of it. If it's a dealbreaker, swap the wood out