I'm exactly the opposite - always been mostly FE. I can find my way around a backend, but you wouldn't want to trust me with a complex/critical system.

I was hired at this company as an FE dev, but after doing a bit of BE work for them, they asked if I wanted to join the platform team. After years of being shielded from devops/infra stuff, I felt like I was stagnating if I stayed in the FE lane, so I went ahead and took the dive.

My mood shifts from one day to the next. Some days I'm okay, but others are really, really hard. Like I'm barely able to understand k8s, and we're also using terraform, helm, etc etc. It might be the largest single learning curve I've ever faced.