There are a total of four presentations in this video from RWC 2021.

First was an invited talk by Dustin Moody from NIST titled "Update on NIST PQC Competition"

After that, there are three contributed talks:

At 29:20; Attacks on NIST PQC 3rd Round Candidates, by Daniel Apon James Howe

At 44:18; Separate Your Domains: NIST PQC KEMs and Pitfalls in Implementing Random Oracles, by Mihir Bellare Hannah Davis Felix Günther (presented by Hannah Davis)

At 59:12; Post-Quantum Crypto: The Embedded Challenge, by Joppe Bos