Conclusion
So, that's about it! This information should get you well on your way to giving Linux a try.
Expect to make some mistakes along the way, and be willing to learn from it. Sometimes, that's the best way to better understand things.
If you run into unexpected challenges, reach out to folks in your distro's community through forums and subreddits. Check to see if your issue has been solved first, then try and explain it as best as you can if you're dealing with something novel. If it's already been solved, you can just apply the solution. If not, someone might have good ideas about fixing it! They may ask you to do some specific things to produce a log or report, which gives them information on what's happening. Do that, and they should be able to help you think through a solution.
Otherwise, enjoy! Once you're settled in, it should be a pretty smooth day-to-day experience. It's not perfect, but Linux gives you the freedom to set your computer up however you want it and need it. It's modular and flexible, able to run on both aging hardware and powerful supercomputers, and is the product of countless people collaborating to make things work.
Best of luck to anyone who takes a swing at installing Linux after reading this. I hope it proves useful and fun.