I don't do project life per se, but I do make regular month-at-home layout, and whatever else layout to document our daily life, trips etc... whatever comes... I started in 2017 and still do. I do my pages in different styles, and sometimes fall behind but my 2017/18/19 albums have been completed and printed, and my 2020 is missing jsut a couple of pages, and I'm on september 2021... but since I got into CT work I needed different photos for specific kits so now started doing albums from 2003 etc.. so I have about 7 albums now in various stages of completion...
I don't think people are busier, but it seems the trend has shifted... there's more emphasis on artsy style, blending... beauty, rather than functionality so to speak... using stock photos has become a thing too... there's also the issue of sharing personal stuff on social media.... and without the external motivation of sharing the pages and getting likes/comments, for some people it's becoming harder to find the inner motivation to scrap...