I admire you, friend!

The problem is that I have not yet met a single human who enables a bios password. An attacker can simply boot the bios and disable it.

You can’t install most linux distributions with secure boot enabled.

If you want to install Linux, secure boot limits the distributions you can use. If you don’t then it’s whatever.

You can ask the receptionist “Where is the Linux section?”, walk up to it and there it is. And you can grab a book and skim through it to see whether it suits you.

You can also go to google, ask “How linux works” and skim through the results.

I’m not saying libraries are bad, they’re obviously amazing (and yes, I’ve been to libraries lol). However, in these sort of questions OP is usually looking for personal recommendations, something that you already read, heard about or found interesting to share. Yes library has books, but which book would you personally recommend OP to read? Which one do you like the best and why?

Recommending the library when someone is asking for information on a specific topic is almost as helpful as pointing them to a search engine. “Just google it and use whichever result you like”.