I actually liked how the start menu works in Win10, with the rearrangeable/resizable tiles you can put wherever and categorize however you want. That was closer to what’s pictured here, but this is still worse.

How do I get that back?

(…I actually liked Windows 8’s Start Screen as well. I understand this puts me in the minority. Everything else about the Win8 UI was a five alarm dumpster fire, but I liked having a big colorful full screen app launcher that could be arranged in any way you wanted.)