I've always approached learning Linux by just diving into it and bashing my head against problems as they come until I either solve them or give up, the latter being the more common outcome.
I wouldn't take this approach with other pieces of software though - I'd read guides, best practices, have someone recommend me good utility tools or extensions to install, which shortcuts to use or what kind of file hierarchy to use, etc.
For example, for python I'd always recommend the "Automate the boring stuff with Python", I remember learning most Java with that "Head first Java" book back in the days, c# has really good official guides for all concepts, libraries, patterns, etc.
So... lemme try that with Linux then! Are there any good resources, youtube videos, bloggers or any content creators, books that go explain everything important about linux to get it running in an optimal and efficient way that are fun and interesting to read? From things like how the file hierarchy works, what is /etc, how to install new programs with proper permissions, when to use sudo, what is a flatpak and why use it over something else, how to backup your system so you can easily reconstruct your setup in case you need to do an OS refresh, etc? All those things that people take for granted but are actually a huge obstacle course + minefield for beginners?
And more importantly, that it's up to date with actually good advice?
I have been using some of the learning resources, specifically this one https://linuxjourney.com/. I hope the video recommendations are helpful to you but I am kicking myself for not adding "also I really hate watching videos and would prefer to read something" to my original post. I have not actually made the switch yet, I want to back up my files first. Bought a new external hard drive with enough space. It was nonfunctional. Had to send it back for a warranty replacement and am waiting on the new drive to show up. Will reply again if I remember once I actually manage to switch over.
EDIT: I haven't forgotten this. They refunded me instead of sending a new drive, so that's another wait period waiting for a good one made by someone else to go on sale…
Yeah I'm the same way, there is a 6h video linked in your post but i can't imagine myself actually going through it like that lol. I'm also in the process of trying to move data and media off my main PC but haven't figured out the best way yet, I have an older laptop that I was considering setting up as a mini pc/home server but then there's also the option of buying a NAS... it gets complicated and more expensive fast either way.