Totally depends where in Europe tbh. I lived in Cyprus for a few years, and how bitterly cold it was in winter always shocks people. I’ve never been as cold in my life as I was mid January in Cyprus even at home - there’s zero central heating and everyone always said I must be exaggerating how cold it got but when it’s warmer outside the house than inside and there’s snow on the ground, it’s not a fun time at all.
And in the summer, running the AC left you with a €600 electric bill (before the current energy crisis) in a country where €1000 a month is a decent salary, so there’s only about 4 months a year it’s even close to comfortable at home. Going to work in a job I hated where homophobic abuse was common even from management as a gay woman was often a relief just because it was air conditioned in summer and heated in winter by electric heaters.
The UK perhaps? Quite a few opportunities in chemistry, a huge Indian diaspora which might help social-life wise and in terms of rarely feeling like you just don’t belong, English speaking, I’ve never felt particularly unsafe as a woman even out alone at night unless I was in generally dodgy areas and that was more a general feeling of not being safe than “this isn’t safe as a woman”, most cities have a significant amount of diversity and immigrant communities that are generally accepted by most people, and while cost of living is higher than it used to be, I’m on basically a dead on average salary and I’m comfortable and usually have money spare to save/spend on whatever I feel like.