Its 2019 and doubt any here are pro.
That said, tubulars are still very much the standard when it comes to road stages. In that setting, teams and riders still place more value in the security and safety that tubulars provide in the event of a puncture. After all, a well-glued tubular will reliably stay on the rim when flat, even at higher speeds, but the same can’t be said of many tubeless setups right now.
For further info and what the pro's ride, when and why.