The National Infrastructure Commission for Wales / Comisiwn Seilwaith Cenedlaethol Cymru has an official video account at:
@nicw@urbanists.video (in English & Welsh)
If the videos haven't federated to your server yet, you can browse them all at https://urbanists.video/a/nicw/videos
You can also follow their general non-video account at @nicw@toot.wales