As I mentioned in differend thread, it really depends on what you are doing with it or plan to use it for.
If you want to browse sus sites, doing some high sensitive things like web banking etc. Vanadium is way to go I think.
If you want general browsing with ad-blocking Brave is the best option on android, but DDG is ok if you use it for lets say some limited things (good example is YT videos, they have that nice feature for it, or Duck AI as proxy).
Little offtopic: I am dealing with kinda same dilema on Windows, like again,... You have Edge which is not privacy friendly but... it is the most secure browser on that platform, main reason is taking advantage of features and security stuff that is already build in OS and some are on HW level. But again Brave is the second best In a way that it balance privacy and security, but it is not compatible with MSD features and detection functions as Edge is.
So I really think you should use both, for sensitive and risky stuff, go for Vanadium, for normal usage go with DDG or Brave.