I haven’t played around with it yet, but it looks neat
This small but mighty update includes some exciting new features and improvements to Zen, such as passkey support for MacOS, and a media player controller that’s fully integrated with Picture-in-Picture mode.
The link from the button: https://zen-browser.app/release-notes/#1.10.1b
I was a user, I even recommended it to people, but since the discovery of this issue I feel uneasy to continue using/recommending it. That dev response is appalling.