Funny thing. If you set a static IP for a host with dhcpcd (like how Raspberry Pi docs recommend), but *don't* put the IP in /etc/hosts, you'll see a *huge* increase in DNS requests from that host. 'Cause services don't know what IP the local host has.
Basically, I reduced queries to my Pihole box by about 60% by adding a line to some /etc/hosts files.
The social network of the future: No ads, no corporate surveillance, ethical design, and decentralization! Own your data with Mastodon!