Just tried it. It loads instantly and then loads some other stuff I never seen before. However for me the main thing still loads instantly.

Same with Gmail. On decent desktop with multi-hundred megabit connection. Frankly just amazing how poor things have gotten.

Yea, everyone is trashing on Outlook web while Gmail is over there doing same exact shit. Even worse, Gmail has never well integrated all its features. Apparently having easy access to my full calendar requires a new tab.