Instagram does something similar - they have random ads in HDR which iOS will display at obnoxious brightness. Just what you want as you scroll by trying to find someone you actually follow.

It looks great on the photos I took myself, but I wish there was a way to turn HDR off for certain apps or at least on demand. There are some YouTube videos online that I cannot even watch because they get too bright and saturated.

It has always struck me as strange and user-hostile that most of the computing and entertainment world has decided to couple together the transition from SDR to HDR with a conceptually unrelated switch from relative to absolute brightness scales, and to not really make any effort to explain to users what's going on with that.

I think the main issue is devices treating SDR as inherently dim, and then upgrading HDR to extremely bright. I want my SDR white as bright as the brightest HDR white. Then HDR wouldn't be such a flashbang. And I wouldn't be leaving most of my display's capability on the table in daily use -- it's super annoying that my display is capable of more than doubling its brightness, but just doesn't, just because I don't happen to be watching an HDR movie. To me, brighter is better as long as it preserves color accuracy. There are third-party apps to increase the display's brightness, but it causes weird issues on my MacBook's MiniLED display by making the cursor a noticeable drop in backlight intensity. Hopefully, the OLED MacBooks fix this, one of these years

I experience this on Facebook on iOS. Glad I’m not the only one. Super irritating.