Is it possible to make money using your Linux knowledge if you’re not a developer? I know I can become a professional devops or sysadmin if I take some courses and master advanced networking. But is there something I can do now as an average, moderately experienced linux user?
This isn't a helpful comment. OP is asking for ways to leverage their knowledge not suggesting that Linux itself is a career path.
Such an open question. First of, whos the market, and where is he located.
It’s more helpful to ask questions of OP if you feel their initial question is missing context.
They probably don’t know what to consider if they are asking the question to begin with. Asking gap filling questions can help guide to an answer.