What happened to my Start menu?

Something really strange has happened to my Start menu overnight.

Seemingly out of nowhere it has added a bunch of pins to groups (I made the top ones myself though):



And in the settings I can no longer set the Start layout:





It used to look something like this:

Click on View: Category V and change it to Grid or List.

Thanks. That does change the layout, but not like it was previously. Has anything changed in Start with the previous updates? I am on LTSC so I shouldn't really get feature updates as far as I know.

Previously it looked somewhat like this: