That's a sad state of affairs for our industry, though. It's like every structural engineer being told to measure which is stronger, iron or steel. How about some basic shared knowledge we can all trust and build on?
There may yet come a day when all steel is sold by weight, manufactured in unnamed factories at unknown chemical compositions such that the only way to know if a piece of steel you have will carry the weight being asked of it, is to use a sample of it in a test fixture.
Unfortunately that day is already today on the Internet, where browsers have unknown design decisions made of unknown reasoning across networks that were optimized for unknown requirements.
How about some basic shared knowledge we can all trust and build on?
We have decades of it, it's so trusted that you're forgetting it even exists. What we don't have are convenient answers for questions at the edge of predictability involving dozens of constantly-moving variables.