Are some trackers allowed in Duckduckgo browser?

I may have not noticed this in past. Duckduckgo says that, these trackers are loaded for keeping the site intact. Are these trackers able to track my activity? And if they are able, what informations can they track?

Another question: In Brave I have seen these trackers are also blocked. So why Brave is not allowing them to load for the same reason?

I'm sorry if it's a repeat question. Please let me know if the answer is already on Reddit.