I think with native Promises (and async/await?) there is currently no way to implement something like Zone.js properly. I've tried to instrument my code manually, but it's really error-prone and verbose. We really need something like https://nodejs.org/api/async_context.html#class-asynclocalst... to be implemented in the browser.
In addition to this, is the new (stage 3 even!)explicit resource management proposal[0], supported by TypeScript version >= 5.2[1]
Though I agree that async context is better fit for this generally, the ERM should be good for telemetry around objects that have defined lifetime semantics, which is a step in the right direction you can use today
