Chrome Version: Mac OS X: 10.12.6, Mac OS X: 10.13.6
OS: 69.0.3497.100

We have received user reports that the Tab Strip and Omnibox is not available in split screen mode. This report contains a screenshot: https://listnr.corp.google.com/report/85686559061

Additional user comments below:
"Unable to access tabs or URL bar for certain Chrome windows when split screening with Macbook Pro 2018 (up-to-date OSX).
Locked on current tab at moment of split screen"

"So Macs have that feature where the window can go into full screen mode.. here, you can split your screen between two apps/windows. since the update, I have been unable to use that function because there are no more tabs at the top, nor is there a search bar... In fact, that page crashes for me..."

"When I do the split screen on my macbook with the google browser on one side and another with another window to fill in. 

But this time since google update makes difficult in the split screen. The issue is about tabs. When in the full screen, the google chrome show the tabs. Then when I do split screen, the tabs disappeared. Before my google chrome was upgrade, I do not have issue with previous version until the new version."