Agreed. And IIRC in v1 we also had some logic to expand it if a filter was actively being applied (so it wouldn’t be closed after you clicked “Apply” and the page refreshed). That would be nice too.
I implemented this! (open if the filter is being applied) But actually didn’t implement what I mentioned to “remember” if the filters are open/closed. I’m not sure if that would be helpful or actually just cause more confusion… but I think it could be easy to add in a follow up feature request. I think it may be nice to add another feature to “always open” the filters on some pages, but still allow them to be collapsible.
However right now it is possible to override the config on a per-view/page level to remove this behavior in case someone did not want the filters to be collapsible.