Run stats on support requests and make canned/auto replies for the common ones?
Even if users don't read them of their own volition, they're still valuable. You can copy/paste responses from them, link to them, or hell just use them to remember the answer yourself later without having to confirm it or even think about it.
I think in the era of LLMs good docs/FAQ are of an even greater value.
You can write a support bot that sends a user's question + docs/FAQ to an LLM to automatically deal with the basic questions and only involve a human in the loop once a question goes beyond what's in the docs.
In my experience, end users don't read the docs or FAQ's or help search - they send you a question.