I've just upgraded to Fedora Workstation 42 and am now unable to activate any GNOME extensions. The little switches in the GUI do not respond. It's the same for all extensions. The Extensions and Extensions Manager apps are both installed as flatpaks - do I need to adjust their permissions in Flatseal? Is the problem due to something else? Thanks!
Edit/solution: I totally missed the ‘Use Extensions’ switch at the very top. All my extensions are working on the current GNOME version (48) now. I am the most silly. Hopefully the other solutions in the comments will be useful to someone else in future :)