pihole misses a ton of things that ublock can do

This seems like more of an issue of the adlists you use in pihole. Pihole’s blocking is only as good as the adlists you use on it. I’ve been running a pihole on my home network for years, and I find that as long as I take a few minutes to update the adlists (add new ones, remove dead ones) once or twice a year, it nukes nearly everything. And it’s amazing for blocking things on IoT devices where ublock origin will never be a thing.

Also, they’re not mutually exclusive – one can certainly use both. I use pihole on my home network, and run ffox + UBO on my computers and phone.