FOSDEM has already started sharing video recordings!
https://video.fosdem.org/2026/
They're grouped by room. It's a massive task, so they're not done yet (FOSDEM is still ongoing as I'm typing this ๐).
Also, you'll want the webm version, not mp4 (unless your device can't use the webm version).
And they have generated captions! While not perfect, they're better than nothing at all. They can help with accessibility, and they're useful for grabbing the text of a talk.