the /api/v2/deployment/stats endpoint returns the below connection figures:

"session_count": {
    "vscode": 1,
    "ssh": 0,
    "jetbrains": 0,
    "reconnecting_pty": 0

however, the session_count.jetbrains figure is not incremented when I open a JetBrains Gateway connection. what is expected to occur for the figure to be >0?

Jetbrains issue

https://youtrack.jetbrains.com/issue/GTW-2288/SSH-Config-SendEnv-not-working-windows

The SetEnv and SendEnv ssh config fields are ignored by Jetbrain's custom ssh implementation. There is no trivial way to fix this. We would have to send the jetbrains information in some other way.