WookieWook Apart from the answer you got about looking at the web site (at first I was reluctant about the information here, but looks as high-quality as the OpenBSD web site), I would add the team behind Vanadium is great.
I had been looking at alternative Android projects in the last years (/e/OS, CalyxOS, DivestOS, LineageOS, and GrapheneOS). Some are great (I had both LineageOS and DivestOS on a Nexus 7 tablet; now, GrapheneOS on my Pixel Tablet), and other not so great, looking more like projects without a strong foundation.
Just looking at how GrapheneOS started its route by adding OpenBSD's malloc(3) it was clear to me they had a great project with real goals, and they were not just selling beautiful words without a strong security foundation in the code.
The team behind GrapheneOS is the most important reason I think Vanadium is a great browser, even if it being based on Google's Chromium may look counterintuitive —at least from the privacy point of view— at first.