One wrinkle with using comment time as the build ID: someone can download a ZIP, then play it after you’ve released an update. I’d put a small version number on the pause or title screen so it’s easy to check if a report doesn’t match the current build.
For “I got stuck,” I’d ask what they were trying to do just before it happened. That can help separate a broken interaction from a clue that led them in the wrong direction, without sending them off to fill out a whole form.