My understanding is that Brave dropped strict partly because, when you go ham on anitfingerprinting in Brave, there is a scenario with protections up too high, you stop blending into anything and turn into a weird outlier. Which ironically, causes you to get fingerprinted.
At that point, the whole thing backfires and you become easier to separate from everyone else. So Brave shifted to a more balanced way about with a hybrid model where some things are standardized to blend into a larger crowd, and other values get randomized through farbling.
Form the way they described it, that actually made their antifingerprinting stronger, not weaker, even if it obviously still doesn’t operate on the same extreme level as something like Mullvad.