The cookie lists have to balance between rejecting cookies and preventing breakages. For some sites, the only way to allow some websites’ features to work is accepting the cookies (or accepting some cookies choices), otherwise those sites will be broken.
I personally just build my own cookie list.
For others who are not familiar with uBO syntaxes, EasyList/uBO – Cookie Notices is good enough.
Off-topic
Off-topic but LMAO for someone saying Brave does not use uBO under the hood. No. They are using uBO filter lists and just add/adjust some filters for few websites that specifically have issues with Brave.
And upcoming to MV3, fewer uBO volunteers would care/be able to solve issues on chromium/brave so good luck (brave did 0-to-few things on youtube’s blocker war, only few people at uBO and Adguard investigated those deeply).