Yes, it really was quite perplexing. I imagine the "reason" was to make it more mobile-friendly or mobile-first or perhaps just to standardize their properties more. However, as you noted, it really degraded the product. I went from a daily user to an almost never user.
"mobile-friendly or mobile-first" seems to be a trend in quite a few companies, in the last few years. The main problem is, the completely ignore the desktop design, viewing it as an either-or proposition, for some, unknowable reason. While it's understandable that much traffic is mobile, during office hours, especially during work from home (which will probably - at least partially - be a continued trend moving forward), quite a bit of traffic will be from a desktop/laptop. Simply ignoring this market share seems to be a fools errand.
