It is more or less the same. Asking out, approaching people. At its core is taking initiative.

As for doing well, getting dates has a component of "practice". She might not be getting dates now. but if she is learning, eventually she would get dates. Also, depends a lot on how do you define success.

Some people think that "getting dates" is success. But that is not true. She could be getting a lot of dates if she wasn't using a "filter". That is, if you don't care who to date and how to get dates, is easy for anyone. You only need to target all the people you don't like too. But that is stupid. The whole point of asking is only trying with people you like. While when someone ask you out, people you don't like might ask you.

Lexie is probably asked on dates by people that she doesn't like too. She could say yes and get a date, but it would be with someone she doesn't like so bad idea.

With practice she would learn, change small things and adapt. Like everyone else. As I said, to me, the trick is to identify people you are compatible with. To "pick up clues". To her it could be something else.

When I was single and in apps, I could have had several dates a week if I wanted. But dates I actually wanted to go? That was more tricky. So give her credit, she seems to know what she wants and that is a huge advantage.

Also, it is not so terrible difficult to "trick" people into a date. I mean, people upload pictures with them being younger, filters, hide things... But in a date, they would see you as you are. Save time and be honest, you'll get less dates, but more chances that the date work.