Klara

I think this depends on context. I live in Sweden, so a non-slavic country, and I have known multiple women with -ski suffixes. Some from marriages or being born in Sweden and just getting ski automatically, but I had a teacher from Poland who has the masculine ending.

So I think if you’re in a country where last names are typically gendered, then sure, it can help to have a last name that is congruent with your identity. If you’re in a country where that is not the norm, I think it’s fine either way.

In any case, it’s her name and her choice.