Since there is so much confusion, I might as well clarify what IcyStorm is talking about. This screenshot shows the difference between the taskbar on my surface 3 and of my old HP heap. (I connected to the HP computer via the remote desktop app, so the top taskbar is on the remote machine and the bottom one is the host.)
View attachment 32323
Notice how much more space there is between the surface's notification area icons. They are all the same icons, but they are taking up extra room.
I'm guessing this has something to do with the surface having a touchscreen and the HP not having one.