not at all, but our devops guy ragequit the job and I want to be able to help piece things together if fire emerges, or help the team. Every engineer has some knowledge so together we're able to handle most of it. I want to use this opportunity to learn more.
This is almost exactly how I became devops in the first place - the existing guy quit suddenly and I had to pick up the pieces in a hurry.
If you're already comfortable with the basics, then focus on one particular element and master it. The other bits will come over time. I recommend Kubernetes as a focus, given your list.
Keep in mind at all times that the infrastructure serves the business.
It's sad that you assume the worst in people.