Edit: Looks like you can opt-out of that “new look and feel” pretty easily under the appearance settings but still, whats with putting rounded corners everywhere?
Edit 2: “Explore the web with a softer, more friendly aesthetic featuring rounded corners […] Designed to complement your operating system, whether on Windows 11, MacOS, or Linux.” The fuck does that mean? Windows 11 fair enough but most Linux distros don’t look like that at all.
It has been for a very long time. It really ramped up when
border-radius
came to CSS, maybe around 15 years ago now. Every site started using rounded corners as it was much easier than the old approach of using images for it. Then apps started copying it, and now everything has rounded corners.