🐛 Bug Report

When attempting to use RCTFabricSurfaceHostingProxyRootView the application crashes when the surface is asked to start before the bridge has finished loading. Note, that I sometimes get a red screen instead, saying _fbBatchedBridge couldn't be found, it's "random". It is also pretty clear to me that the runtime pointer is null when this happens. Stack trace below:

To Reproduce

• Follow the directions to run on Fabric: working podspecs & works in RNTester #23803
• Comment out the code in Swizzle_RCTFabricSurface.m
• remove the RCTJavaScriptDidLoadNotification observer in AppDelegate.m
• Open workspace, run app, observe error.

Expected Behavior

RCTFabricSurfaceHostingProxyRootView to wait for the bridge to fully load before starting the surface.

Code Example

#23803. Hopefully my swizzle / hack code can be of help in proper solution!

Environment

N/A? This is RNTester.