There have been a lot of innovations in hotels in the last couple of decades, from big things like making lobby spaces more multifunctional - integrating lounge space, restaurant space, and check-in space for example - to simpler things like getting rid of highly decorative wallpaper and heavy drapes for a cleaner look.
In fact, last year I stayed at the Moxy Milan Malpensa hotel for a night during Design Week, and absolutely loved it. A new brand from Marriott, Moxy hotels try to give you just what you need, no more, no less. So arriving on a late flight, I was glad there were local food and drink options right in the lobby/check-in-desk/bar. The room was small but I didn't lack for any more space, being just a short layover. The bathroom was great. I really feel like they studied travel habits well and designed the hotel around the experience.
What hotel hasn't apparently changed in the decades? The Marriott Milan.