So SGDQ happened recently. One of my favorites was the Tunic true-ending run, because two of the devs were on the call and were constantly like "that's not a glitch; we put that in for the speedrunners" or "we knew you could do that but didn't feel like fixing it". There were a few things that the devs didn't know about, which was also cool. Warning: massive spoilers for Tunic.