Zen is the best way to browse the web

I saw this was based on Firefox, which is interesting, and downloaded the AppImage to at least look at it. Initial questions:

- Why does this launch full screen initially?

- Why doesn't the light or dark theme selection include an option to follow the system settings? (Or does it and it's just not obvious?)

- Why is the search engine list on first run a weird (and kind of stupid) list of Google, DuckDuckGo, eBay (excuse me?), and Wikipedia? Seriously if you're telling me about this as a privacy focused browser (and your privacy policy seems relatively clear there) why is Google first on the list. Or on the list at all? And why two items that aren't even general purpose search engines?

The web page isn't clear so what is are the goals of this that would differentiate from upstream Firefox? Vertical tabs? I don't even want them. A sidebar? Same story.