Ah it's tough to choose and I actually couldn't listen to everything myself unfortunately (too busy taking care of a bunch of other stuff in the background during the conference)

But I think "Surviving the 2021 Myanmar Coup: How the Military Orange-Pilled Me" offered a unique perspective and seem to leave a big impression on others as well.

Also, it's not a talk, but the Lightning Marche on Day2 did a kickass job and it impressed a lot of international bitcoiners with unique products and experiences.

We're gathering Lightning sales sats now but we had more than 20000 USD worth in Lightning transactions from the Marche alone.