Work gives you good opportunity to develop deep knowledge in a subject, but to stand out you also need broad knowledge, years of work experience can give you this, but your own time can speed this up.

I find that programming at work and home all the time is a recipe for burnout, but if you use leisure time for reading docs, blogs, watching videos etc (and a perhaps a little programming) this can be refreshing, particularly if it gives you broader knowledge for your current role - use your k8 experience to read up on docker and other systems. What are the alternatives to AWS you are using and other AWS Systems that may be appropriate for your work Etc.

Concentrating on the interesting things around your current role will be good for your career now.