Chrome Version: (copy from chrome://version)
OS: Chrome OS

What steps will reproduce the problem?
(1) install a desktop PWA and set it to launch in a window
(2) use it a lot so it appears in the NTP
(3) launch it from the NTP


What is the expected result?
- it should launch in a window

What happens instead?
- it launches in a tab



Please use labels and text to provide additional information.

If this is a regression (i.e., worked before), please consider using the
bisect tool (https://www.chromium.org/developers/bisect-builds-py) to help
us identify the root cause and more rapidly triage the issue.

For graphics-related bugs, please copy/paste the contents of the about:gpu
page at the end of this report.