Perhaps they’re referring to how YT will overwhelm the Home feed with tons of suggested crap and a few videos from your subscribed channels, instead of the other way around. You can click over to a subscription-only feed, but it’s not the default.

Started messing around with docker containers on a small Synology box a few years ago, dumped Synology with a quickness in favor of just building an Ubuntu-based NAS. I’m running TrueNAS Scale bare metal now and getting ready to dump it to go back to another roll-my-own Linux + ZFS setup, possibly using Cockpit and the ZFS extensions from 45 drives.