iOS 26.5 broke safari web playback

[visproduction 369]

Probably not relevant:  Apparently Apple OS can throttle back activity, based on battery levels that go below 80%.

https://www.gadgetreview.com/the-real-battery-gate-how-to-check-if-apple-is-still-throttling-your-iphone-and-stop-it#google_vignette

Quote

Navigate to Settings > Battery > Battery Health & Charging, and you’ll find Apple’s confession booth. The “Maximum Capacity” reading shows your battery’s remaining juice compared to when it was factory-fresh. Once that number hits 80% or below, iOS starts throttling your processor to prevent random shutdowns. If you see a performance management notice underneath, congratulations—you’re officially being throttled.

 

Also, your test media is pushing the limits of playback.  I wonder if even a change in Wifi activity might trigger an transcoding for the audio.  Or does the update have any default playback settings that changed, instead of keeping the previous settings?  Yes, of course, there can be a code issue that needs to be corrected.  It might be helpful to test less demandng fps and media bitrates to see where playback starts to work.