The main qualification of one of the best electronics engineers I knew (UK) was Bachelor of Music.

Most of us in electronics in the 1970s in the UK had physics degrees I think. And when I moved sideways into software much later the physics background was eminently useful when modelling machinery and physical processes.

But I too have met engineers with music and also medical backgrounds. But that's all more than half a century ago, it seems that employers expect much more narrowly focussed qualifications these days.