See the specialising part is interesting to me, because I've found a lot of companies expect you to be very specialised these days, and it really gets in the way of trying new things.

I was originally in the game industry and left it because I was stuck in a hyper specialised niche (web-based game development). I went back to more general full stack, but even here a lot of companies will specifically look for people based on them having multiple years of commercial experience with their specific stack, rather than just holistic experience in the broader area.