[RandomLensman]

1) Examine what it is you are really missing: you say you love your work and the team and it brings you joy. That is not so common. So maybe it is more about a new project or some lateral things that could be accomplished within the existing setup?

2) Not sure there is a (good) relationship between fit and salary. Some high salaries have a reason and those reasons might not be so pretty.

3) Masters. My experience is that folks opting for a masters later in their career tend to often have one of two things in mind: (a) some move towards executive/different career path, which then tends to mean MBA with the respective networking; or (b) some change in the "underlying", i.e. trying to add more skills that are somewhat different to the existing

[sedeki]

Not contradicting what you wrote per se, but a master's degree in a European context usually does not mean an MBA. And also tends to be quite common to get a master's/MSc while you're at it.

[RandomLensman]

Agreed. I meant it more in terms of what I see people do after the first 10 years working or so