Way for new Mac touch bar to behave the same as the Old keyboard The new touch bar is not very good for people good at keyboard shortcuts and development.

I used to be able to press Shift F8 to get iTunes to play without giving it focus.

How can I get the F10,F11 etc. keys to always display on Chrome without pressing Fn, on touch bar Mac?

This makes debugging annoying.
In the system preferences go to "Keyboard". Select the "Shortcuts"-tab. Select "Function Keys" in the left menu. Click the + and add the applications where you want the F-keys to always show.

If you never want the touch bar but the old F-keys with brightness, volume backlight and so on. Go back to the "Keybard"-tab and select "Expanded Control Strip" in the "Touch Bar Shows" drop-down menu.