I just merged an update to the sokol_app.h iOS backend which replaces MTKView with CAMetalLayer+CADisplayLink (followup to the recent macOS backend update), and also migrates the iOS backend to 'UIScene lifecycle events' (this will be required in the next major iOS update).

Details in the changelog: https://github.com/floooh/sokol/blob/master/CHANGELOG.md#23-feb-2026