shadowbeany Interested in knowing about this.
This guide has some factual browser security analyses.
For Brave:
Overall, on desktop, Brave is rather useless. It is filled with bloat and any security or privacy advantages, even the adblocker, can be achieved with Chrome. However, on Android, if you do not have access to Vanadium, then Brave is probably the next best choice. Chrome on Android isn't bad, but Brave actually offers more there and the bloat is way less noticeable and easier to turn off
For Cromite:
Cromite from what I have seen is mostly feature redundant with Brave, not that Brave is a good option, but it has more to offer. Most of my criticisms about Brave equally apply here, some to greater degrees, some to lesser. Point is, this isn't any more a security-focused option compared to Brave, and Brave isn't a security-focused option.
The closest thing to Vanadium would be secureblue’s Trivalent
Essentially, this is Vanadium for desktop Linux, somewhat literally. Do note that despite getting as close as possible, it does not match to Vanadium currently due to poor security in the desktop Linux ecosystem and a lack of availability of hardware security features like MTE. Many patches from Vanadium that are not Android-specific are used. Not only that, it expands on many desktop and Linux-centric hardening. Additionally, due to a decent amount of automation work, weekly updates are often shipped same-day as upstream or the day after, at a very consistent pace.