This smells like pure marketing, incl the company's website. I'd rather use an open-source browser like Firefox.

This site basically says nothing except "sign up".

I have heard so much about this browser from dev & tech podcasts and websites[1]. Those who use it really love it, I wish their website had a video demo at least.

This landing page has some screenshots at least https://students.arc.net/

[1]https://www.theverge.com/23462235/arc-web-browser-review