Preface: I’m not in front end or flagship teams so I’m saying hearsay.

The initiative Chris refers to is still alive but likely hasn’t made any meaningful progress. These things tend to have a lot of fan fair and then suddenly leave the front conscious of the company as we get a new GDPR/DMA fire to put out. at that point it will be dead. Or, it will stay alive for 2+ years as slowly but surely 50% of clients migrate to it and see even poorer performance.

There was a blog here a few months ago about migration from restli to grpc. It’s still going on, and nearly every app i see is still restli.