If you're at a games studio that values build-times, value that. I worked at a very good SRE-mindset studio and missed it, deeply, after I left. Back then I expected everyone to think and care about such things and have spent many, many hours advocating for best-in-class, more efficient, cheaper development practices.

WRT github actions... I agree with OOP, they leave much to be desired, esp when working on high-velocity work. My ci/cd runs locally first and then GHA is (slower) verification, low-noise, step.