Spy

You are not wrong, but uBlock needs to be installed on each device and only works on the browser, while pihole blocks adds across the whole network for all devices.

I have pihole but still use ublock on my personal computer

ChatGPT and similar LLMs don’t really “know” anything. They can only predict what the answer should look like. This means that they can’t be trusted for much and their answers should be reviewed before used, because anything they produce will sound correct by default.