Comment by Telaneo

> 1. I looked at AdGuardHome but I preferred PiHole because I found its documentation a bit more helpful for my purpose (the Unbound sample, the Wireguard setup, etc)

Probably the right call, but funnily enough, I had to go the other way. PiHole started using 100% of the CPU on my Raspberry Pi 1B after an update to version 6.x, which then obviously slowed the entire network to a crawl and made it unusable. Although later versions supposedly fixed that, whatever was the latest version at the time still had that problem for me, even on a completely fresh install.

AdGuardHome worked for me without any hassle, but I would never have even considered it, given I'd been happy with PiHole for 5+ years, if it hadn't been for the fact that whatever update PiHole did completely borked its usability.