The new edge needs toggle for all uit elements.

[Tanghe2030]

Plz implement the possibility to hide all ui.
taskbar.
Tabbar.
adresbar.
for use with powertoys and vimium.

[#2]

on Edge Dev or Canary, press F11 to experience the new drop down full screen mode.

if you're on beta or stable channel, enable this flag first, restart browser and then press F11.

edge://flags/

Enable Fullscreen Dropdown
Drops down browser frame during browser fullscreen. – Windows
#edge-enable-shy-ui


Also:
https://support.microsoft.com/en-us/help/29280/windows-10-how-to-use-the-taskbar