I like to think of (and recommend) three of the channels on the list based on one’s experience and how “deep” they want to go with Linux:
Linux Experiment is great for the “average desktop user” (like myself), someone who’s not too interested in programming or development and just wants to keep up with Linux-related news that relates to the average user and find cool tools to use with whatever distro or system you’re running.
Brodie is “mid-level”, I’d say, he looks at some of the more technical stuff but presents it in a way that relates to how a more average user would be interested in the thing he’s talking about. He talks about a good amount of dev stuff, but It’s still useful information generally for most Linux users out there, from folks who are just above " beginner level" to more advanced users.
DT (DistroTube) is for “power users” mainly, I think. He says he doesn’t really do development or programming, then makes a bunch of scripts to change up a bunch of window manager settings and goes hardcore into writing stuff for Emacs. He says he’s not a distro maintainer, then goes and takes his scripts and makes them into his own distro. For most of his videos, even if he takes you through what he’s doing step-by-step, you kinda have to know what you’re doing with the tools he’s using to know what’s going on. He talks about a lot of things like window managers and development and configuration tools the “average user” who just wants to do basic stuff on their desktop probably won’t know a whole lot about.