A - Alone time (how do they get off when they’re all by themselves? do they watch porn, is it all in their imagination, do they jerk off, do they use toys?)
She absolutely uses toys, but not as often as one might thing. She’s sexual yes, but when alone Sombra spends so much time distracted by information gathering and hacking and going through data and building things and projects that she doesn’t actually play with herself all that often. When she does a lot of the time it involves porn that is, surprisingly, paid for and from private/indie sex workers rather then anything mainstream. The closest to mainstream Sombra would get in present day would be Crashpad.
Sombra endorses supporting your content creators. They are just trying to make a living.
Y - Yes, Master (what kinds of names are used during sex? do they like being called master / mistress, daddy, etc…? what names do they call their partner?)
This is complicated because it really just depends. Normally Sombra likes being on top and in control, but with certain partners she likes playing games and giving them opportunities to top and being a massive power bottom. So it can go anywhere from babygirl to papi/mami to slut to darling to bella to what ever crosses her mind at the moment. She likes different names, and terms, and stuff.