also: hosts file can cause problems with things like Windows Update and other software that you might want to keep working. Pi-hole is easier to disable. I always forget that I installed some hosts file blocks with Blackbird ( https://www.getblackbird.net/ ) which is an otherwise pretty nice tool (aside from that and how it's unclear if you're enabling or disabling something, since the switches "toggle" something instead of expressing that you want to disable or enable it specifically).

+1 for pihole; rPis / odroids / SBCs / NUCs / home servers are easy enough to run that it's worth it.