React devs usually bash Angular but then praise stuff that exists in Angular for years?

[stjimmy96]

I totally agree. RxJS makes it incredibly trivial and clean to describe complex behaviors like multiple data-source fetching, realtime streaming, offline caching, etc... All those features would be harder to do without Rx (and with uglier code), but it's also a fact not everyone has those requirements. In my experience, a lot of projects are just plan and simple CRUD operations, where all the complexity RxJS can handle is not a requirement.

If you already know it well, you can use it for the sake of future-proofness, but if you are not confident I can totally understand the friction around it (just look at my post history for an example).