Worked on stabilizing WebGL2 initialization for iOS simulators within the AvaloniaUI/angle repository, focusing on graphics programming challenges specific to Metal-backed environments. Addressed a rendering failure by introducing a simulator-specific check during the configuration of graphics capabilities, ensuring that the maximum vertex output components are set correctly for simulator contexts. This targeted bug fix, implemented using Objective-C++ and leveraging expertise in Metal API and WebGL, improved the reliability of cross-platform rendering tests. The solution reduced simulator-related debugging time for both QA and development teams, enhancing the consistency of WebGL2 behavior across real devices and simulator environments on iOS.