Looks like the TRATech 2021 videos were posted in in mid August 2021 so hopefully it won't be too much longer till the 2022 videos find their way there.
I admit that I was drawn to TRATech more for the air conditioning than the presentations, but it was neat to see the entirely 3D printed airframes and such.
Maybe in a couple years I’ll know enough about more advanced topics to be transfixed.