I’m choosing a main browser, and I think that firefox with ublock and brave are probably equally good in terms of privacy and security, both of them look quite nice, and both are FOSS. The final thing that I’m considering is resource consumption. This reddit post shows that firefox is better than brave in benchmarks and ram consumption, but what about when firefox has ublock running and brave has all their preinstalled “extension” like brave rewards and wallet disabled (except brave shields is left enabled)?
Can’t say for sure but I know the ad blocker in Brave is built in rust which should give better performance than standard extensions.