Does the Call of War Fandom still get maintained?

Look at the dates that pages were edited. To my knowledge it's not regularly updated since it's an unofficial page, meaning it's more of a hobby/project of the original creators who have maybe lost interest.

From what I can see it seems less outdated than the "official" wiki

True, the official game manual/wiki still has stats and pages from the classic version, the most recent updates I saw on there were from 1+ years ago.

This is from the Fandom article on Light Tanks: