It’s old, but still entirely factual:

https://i0.wp.com/img.photobucket.com/albums/v339/Zecro/trolling.png

Make sure you’re also blocking all other outbound DNS at your firewall. Many “smart” devices (and presumably some apps, though I have no way to check this) are hard coded to use 8.8.8.8 regardless of what DCHP says to use.

In my case I use FLAC because when Plex transcodes, FLAC > Opus sounds better than MP3 > Opus. Almost all my media was ripped by me direct from CD, with some coming from Bandcamp.