Here's the 3-Second Pull-Up Bar holding 500kg.
Honestly, really impressive, although this likely would fail on a traditional wood-stud wall.
Video
Cooper Mitchell - HomeGymGuy (@homegymcoop)
This is called the 3 Seconds Pull-Up Bar.
It stores away and then folds up for use using a gas spring, and according to the company, has a supposed 500kg (1,100lb) weight capacity.
Pretty genius if you need something to get out of the way when not in use.
Video
— https://nitter.net/homegymcoop/status/2054541256206758153#m