Do you know that it’s possible to download the whole Wikipedia or Stack Overflow with
kiwix? Just go to
library.kiwix.org, select required
resource and download the dump. It can take several hours, even on a fast connection. Then use the
reader to explore the resource offline. I prefer to install the
reader from Flatpak: flatpak install flathub org.kiwix.desktop.
Kiwix is barely useful for fast Internet connection, but for some corner cases it can be extremely important.