Is there a workaround for the unsearchable collapsed default view for mobile Wikipedia pages?
This also means that when you press the Back button, the sections are collapsed, and you lose the place where you just were.
All-around a terrible design and implementation from usability perspective, in my opinion.
Also yes about the scroll position – while at least occasionally (possibly within the same session, but not if you're closing and later re-opening the whole browser) it seems like Wikipedia tries remembering which sections were opens and which were collapsed, it happens too late in comparison to the browser attempting the restore your scroll position. So if you had scrolled farther than you can scroll in the completely unepxanded state of the stage, your scroll position will be lost.
This definitely has not been the case for me. If I don't expand the sections while online, I can't do it when offline.
Some people on mobile phones like the desktop view with timeless skin (add ?useskin=timeless to end of url).
E.g. https://en.wikipedia.org/wiki/Border_between_Quebec_and_Newf... (assuming you arent autoredirected to mobile)
(The toggle only appears on small devices, as on larger devices there is no section collapsing.)