Pihole is a great project, but it is objectively less capable than uBlock Origin.
That is not a criticism of the software. It is just a fundamental fact that DNS based adblockers are less powerful, and less granular/precise than Browser based adblockers.
They do work well in combination though (the DNS level adblockers gives you moderately effective network wide blocking, and uBlock Origin gives you exceptional blocking but is limited to the browser.