I've configured KDE Plasma to look almost identical to Mate (the defaults are similar to Windows, nice, but I prefer the Mate layout):
- top panel / bottom panel
- desktop switcher bottom right
- task bar on bottom
- desktop button bottom left
- clock top right
- app indicators top right
- app icon launchers on top bar
- app menu top left
It's not just layout, either. Gnome can be configured to do much of this, but it just feels terrible. Task bars can't be dragged to re-order. Desktop switchers just have numbers instead of contents. Animations are slow and annoying. Etc. Etc.