Proposed solution: Add a button to "Tools" that will expand all the collapsible elements with one click.
Who would benefit: Anyone who wants to see a page fully expanded; also editors who need to compare a preview of their edits to a page with the original page with all collapsed elements shown.
@Bruce1ee: It sounds like you're referring to the mobile site, not desktop. Is that correct? I ask because I'm not aware of any skin that collapses sections by default. As for the "Tools" menu you refer to, I'm assuming that's the menu shown at the top-right when "advanced mode" is enabled? Thanks and warm regards, MusikAnimal (WMF) (talk) 19:03, 24 January 2023 (UTC)[reply]
@MusikAnimal (WMF): I'm referring to the desktop, not the mobile. The "Tools" I'm referring to is the Tools menu at the top right in Vector 2022 (or the Tools menu in the left-hand side in Vector 2010). It doesn't matter where this button would go, the Tools menu was just a suggestion. —Bruce1eetalk21:38, 24 January 2023 (UTC)[reply]
I vaguely remember that there was a userscript for this somewhere, but I can't find it right now.. It definitely wouldn't be hard to make one, as there is a hook that is triggered for all collapsible elements, which you can use to modify the behavior (this is how autocollapse works). —TheDJ (talk • contribs) 14:13, 25 January 2023 (UTC)[reply]
@Bruce1ee: I wish the Vector 2022 skin for the desktop site would have an option to move the global search box under everything else in the top header row (the site logo, the tools icons, et al.). I regularly look at Wikipedia with Firefox zoomed at 170% with the browser sidebar permanently expanded to display browser tabs vertically, and this causes the Wikipedia search box to collapse into a little magnifier icon I have to constantly click to expand again. I wish this need to click to expand a global search box at any page zoom setting would go away, at least optionally, if a user could go into settings (which unfortunately requires logging in), and ticking a box to permanently keep the search box in its own row in the site header, with nothing else in that row. — Derrgill (talk) 02:08, 21 February 2023 (UTC)[reply]
Support Invaluable for finding text lurking in one of many hidden sections. I have a bookmarklet for this on my browser toolbar. Certes (talk) 21:32, 10 February 2023 (UTC)[reply]