What is this Unknown82 configuration? Every time I open the dropdown the number increases (like Unknown72, Unknown77, Unknown82)

I've seen things like that for configurations based on plugins that aren't currently installed. For example, when you have an Android Studio project with an iOS run configuration from the KMM plugin, and open it in Intellij which doesn't have the plugin.

Also when the plugin is not correctly versioned it will keep disabling it automatically, which can produce similar results. Can't wait for plugin to stabilize more, currently it only covers a small subset of "new but not too new" android studio versions