PDF is THE choice for cross-platform presentation and printing, but a real PITA for collaboration, funny enough one of the places where the web version of Word is pretty decent. A lot of industries live in Word/Office, and "generate PDF" is a pretty small part of their workflow. Also remember that printing to PDF without an expensive purchase was not a thing for many decades; I've only stopped using the Win2PDF license I bought 25 years ago on my most recent computers!