InteropObservable and Observable incompatible

[shortercode]

We've been having frequent issues with mismatched versions of RXjs between our application and the dependencies of the application. Functionally these cause no issues but typescript often end up exploding over type assignability ( Observable !== Observable ). I hoped to resolve this issue by using from as an adaptor for the imported Observables before piping off it. from accepts both Observable and InteropObservable so it should take RXjs Observables and alternative implementations so long as they meet the specification. It will not however accept older versions of the RXjs Observable because it doesn't match the type for InteropObservable. Specifically the issue is down to how Symbol.observable is polyfilled. InteropObservable uses the spec complaint Symbol.observable value which is of the type symbol. But Observable uses the internal Symbol_observable which is the type symbol | string and hence does not match the function signature.

Does anyone have a workaround which doesn't involve modifying the versions?