I need help

A few years ago, I had a Russian friend. We talked alot every day. We played Stardew Valley together alot too... but at some point, she just dissappeared and i was unable to find her and I thought she died.

But as of late 2025, it came to my knowledge that the app we talked on was banned in Russia around the time she disappeared.

So now, I'm wondering, is she still alive? And out there?? Idk... but i want to try to look for her but idk how to start.

Is there any social media apps that lots of Russians use?? Idfk, i just miss my friend :((