Did you also make sure to flush cache in other areas?
I don't necessarily agree due to the way each technology works. In addition, we have several users who run only Pi-hole and some who run Pi-hole + uBlock. The two applications complement each other well.
- An advantage to uBlock is the element hiding and in-depth filtering rules.
- An advantage to Pi-hole is that you don't need to install a browser extension and can block ads in apps and other smart devices
Pi-hole will block any content from these domains. uBlock will show individual ads blocked instead of just the domain. If you comparing the number of ads blocked by uBlock to the number of domains blocked by Pi-hole? If so, those numbers will be very skewed due to the way each application works.