I'm the main person responsible for our help center at my workplace. When I look at the conversations that our support handles I often find that our users don't seem to know that there is something like a help center. We do link to articles in lots of marketing content, in product tours and added the search in the messenger. We even have a "Help" button in our product that links to it.
I also encouraged our support to send the fitting articles whenever possible.
Is there anything else that worked for you? Were you able to increase the views for articles somehow? Curious to hear some insights.