I added a comment to the bug, but also wanted to post it here to try to gain more attention and hopefully revert this update:
Broken Use Case : 1) Debug a page issue 2) Command-2 to switch to a reference [BROKEN]
Broken Use Case: 1) Command-# between windows 2) End up on a page with dev window open and focused 3) Command-# now "trapped" by Dev window which breaks the tab switching [BROKEN]
Broken Use Case: 1) Using keyboard shortcuts to switch between IDE/Editor and Chrome 2) Try to switch to another window using command-# and can't. 3) No keyboard shortcut to switch focus from dev tools to main window. 4) I am now forced to use my mouse, to focus on the main window, which greatly slows me down [BROKEN]
I've been trying to get used to this change for a couple weeks now. It is noticeably slowing down my development, and I'm sure others.
At the end of the day the Dev Window is not a first class citizen, but a servant to that particular browser window. Do not treat it as a full blown window for the sake of consistency, as you are breaking fundamental workflows in the process