I am going to look into policies next, but that is a future fix. We have a handful of Chrome based icons that are being published with this timezone argument. Some launch with no issues, some won't launch unless there is already an established chrome session already open.
Some have a working directory installed, some don't, Some have it published with Application Group and the others are Delivery Group. It is all over the place.
I think they ones with App groups might launch fine, but I have to set up a test one. This is an odd issue.