Specializing in Linux being in cybersecurity. Worth it or not?

I want to pick a niche for myself being in the cybersecurity field (I graduated with a Bachelor's almost 3 years ago and have been working full-time since in security engineering). I really like Linux and I have my Red Hat Certified System Administrator (RHCSA) certification. They have a certification for security as well, but I need to get a couple other certs in their line before I can take that one. I just need to know first if this …

certification certified cybersecurity cybersecurity field engineering linux red hat security security engineering system system administrator working