For the past couple of weeks I've noticed that the OSD volume control on all my Windows 10 computers are now massive and take up a good portion of the screen. However, that's not the worst part it seems to take around 5 seconds for the window to fade all while blocking windows behind it.

This is apparently to do with Chrome and can be disabled so it reverts back to the standard small control without the pause/play buttons.

In Chrome, type about:flags in the address bar and press enter. In the search bar enter media and under the Media Session Service header set the value to disabled (as below).

You will have to relaunch Chrome but your volume control will now look like normal!