How to prevent links to open in Gmail's integrated mini-browser

On Android, when the user opens a mail with Gmail and clicks a link contained in the mail, then this URL is opened in sort-of a "mini browser", with a special bar at the top.

In my case the URL is a Portable Web Application (PWA) and should be opened in the Chrome browser itself (giving the user the possibility to manually add the URL to the home screen).

Is there a way to tell Gmail to always open the URL in the normal Chrome Mobile browser (or the standard browser)?

target="_blank" doesn't seem to help...

In Gmail go to settings --) General, and uncheck the option to open links in gmail.