They have tried making Microsoft Edge look more like Google Chrome. How unsurprising, Microsoft cannot go a single release of anything without copying someone.
They have also massively dumbed down the error messages, presumably because the drooling masses don't have enough attention span for that anymore.

Tabs now also have little preview windows. I guess that's actually a useful feature.

Several context menus have gotten the Windows 10 treatment and now take up twice the amount of space than they need to.

Another type of application I love: the ones that display full screen error messages without giving much of an indication as to what you can do next.
At least in this case they have "helpfully" provided an error code in tiny print that is easy to miss at the bottom of the expanse of wasted space. But, again, baby steps forward.

I gave the machine an internet connection, and it looks like there is prominent advertising in the store now, but not much else different. Unbelievably they are touting browser extensions as such a big deal, when browser extensions have existed for what, over 20 years now?

Apparently they also sell books now? Well, "e-books" I guess, which sounds so great and DRM'd so you now don't even own your reading materials either. Such progress.

Why are they advertising Bill Gates' reading lists? He hasn't worked for Microsoft in years!