We might just be at peak webdev. Everything will seem new to someone and old to someone else.
There were so many bad talks at All Things Open in 2022 I didnt go last year. I will try it again this year, though.
The worst offenders are always 25 min talks with 10-15 min "why I am great" self-intros. I am in the minority, perhaps, but I dont really care what you have done / where you work if you have something interesting to say. But we all default to appeals to authority.