The wireless telecom industry does this on the regular. It requires tons of collaboration, tons of design & specification, tons of testing & verification, etc. etc. With all that, I suspect the reason why Bespoke Walled Garden 5G Wireless™ doesn't become a regular occurrence is because the barrier to entry in both buying spectrum and rolling out infrastructure is so incredibly high.

I have no idea what if any lessons there are to learn from that, but it is at least an example of where an entire multi-vendor, multi-layer industry migrates forward more akin to the "protocol" model mostly all together.