I second this. I was a sysadmin turned devops engineer at a small software company (100/150 employees) for 8 years. Basically the longest employed employee at that point. Knew everything about our systems, infra, software, customers etc. Thought I had a pretty good grasp on what I did.
Got bored after 8 years and now work for a big company as a DBA, and man, I knew so little in hindsight. Having sysadmin knowledge does make working with other teams (like infra) much easier as I feel they respect me more than another colleague but I definitely got put in my place (and love it here!).
Also specializing on databases satisfies me a lot because I feel I'm really grasping the entire tech for real this time and not just the surface.
Got bored after 8 years and now work for a big company as a DBA, and man, I knew so little in hindsight. Having sysadmin knowledge does make working with other teams (like infra) much easier as I feel they respect me more than another colleague but I definitely got put in my place (and love it here!).
Also specializing on databases satisfies me a lot because I feel I'm really grasping the entire tech for real this time and not just the surface.