Not to undermine an importance of creation of new articles, but to note that after the reform of the administrative divisions of Ukraine in July 2020 dozens, if not hundreds of thousands of articles across many projects now contain wrong information (well, not up-to-date information). In the English Wikipedia, I was correcting it pretty much single-handedly since the last year, and I will probably finish correcting it by the end of this year (though occasionally I see people reverting me saying "information is redundant" or smth similar). I see that on all other projects, including Ukrainian and Russian Wikipedias which I would normally expect to take the lead, the articles about Ukrainian localities still contain this outdated information. I do not really expect to be acknowledged for this (looks like almost nobody cares), but a bit of attention to already existing articles would probably not harm.
Best
Yaroslav