I often think, especially if you have 'technical' users, better than telemetry is just making it easy to tell you things.

I frequently want to be able to just quickly say 'gah, that was annoying, I clicked that instead of that because I thought it would do that, not seeing this covered by those' or whatever, just vent a little bit, and vaguely hope it might be improved.

Not a support chat, happy to have fa follow-up email if more information needed and it's actually being worked on I suppose, but generally just a quick easy fire and forget.

Like telemetry, but where the user provides all the content; not a glorified yes/no to content you've guessed ahead of time.