Hello,
looks like the latest Safari update broke WebGL2 support.
You can reproduce by updating to iOS 17.0.2 and visit https://get.webgl.org/webgl2/ with Safari.
I've reproduced using an iPhone 11 MWM32QL/A
Thanks, Luca
Hi, looks like that the issue has disappeared. IDK if is possible that iOS receives fixes without an update. Maybe was something else presente only on the device I was using for the test?
I'm marking this reply as the answer.
Meanwhile I'm investigating on how to reproduce with less code as possible a huge slowdown that occurs only in private mode.