I know that "SP Page Builder" stores collapsed/expanded state data in database, because if I expand it and save it, another admin sees it expanded. And If I collapse it and save it, another admn sees it collapsed.
This for example is good feature if more than one admin is modifying EL layout, which is less likely scenario considering the fact how easy is to mess something in EL
SP Page Builder is both structure and content
oriented so storing exp/coll data in database is justified.
IMHO for EasyLayouts it would be enough to sore this data locally
Thanks for considering this suggestion as feature