For some reason still no, sadly.

I have a hard time assigning countries to open source projects since anyone can contribute. No idea whether the core devs are russian. Their online communication and documentation is completely in english and their domains are american.

I recommend Stoat, it can be selfhosted, open source, there is no shady company behind it, and it works well. There even is top-notch noise filtering, which I found very important for voice calls.