It's much easier to debug and observe traffic (browser Network tab).
The DX for JSON things is much better. The UX for protobufs is much better (faster, less data over the wire, etc). Which you optimize for is up to you, but there isn't a straightforward "Use this tech because it's the best one."
The DX for JSON things is much better. The UX for protobufs is much better (faster, less data over the wire, etc). Which you optimize for is up to you, but there isn't a straightforward "Use this tech because it's the best one."