blank video but sound, since updating to 15.4.1

[Calaveras]

The return of the video blank but you can hear it issue.
Previously there was a workaround of going into Safari settings and disabling GPU. But that super helpful setting option is gone now. At least on my phone.
Full detail;
Iphone 7+
IOS 15.4.1
Video worked in Safari before the update. But not in other browsers like Firefox and Chrome.
Video DOES work in Disney+, Youtube etc. But only after updating.

Must say, it seems like Apple is doing all it can to break video on the iPhone for everyone except their own apps.
I've done some coding myself, I understand stuff gets deprecated. But usually for security or performance reasons.
What issue was the old codebase for video causing that they are cutting off the renderers at the knees?

 

[Calaveras]

Really nobody else getting this?
The problem was around in previous versions for the last year or so. But you could re-enable video for Safari at least. Now even that isn't possible.
Wonder if they only test these updates through the developer previews.
Hence it never gets tested on older phones like mine, which may not have adequate GPU tech.

 

[Calaveras]

Guess I'll take apple support up on the remote session offer.
Though I'm pretty sure they will blame the age of the device.