I think their point was (at least in part) that it matters more on server-side and infrastructure-side than on the user-side. And maybe with poor net infrastruc

I think their point was (at least in part) that it matters more on server-side and infrastructure-side than on the user-side. And maybe with poor net infrastructure, the users benefit more than where infrastructure is good. I responded somewhere else in these comments where I found that the difference between HTTP/3 and 1.1 was barely noticeable with wired connections for me, but very significant with poor quality WiFi. That seems to be the practical side of 1.1 vs 3, at least in my subjective exp.