Part of Linux culture is customizing your system. Linux allows you to do much more with your computer, but some of these things require tinkering or might cause you to break your setup. If you don't tinker much things will most likely be stable, but having the ability to tinker is for me a major part of the appeal. What are you hoping to get out of using linux? It's a good alternative if you wanna make an old computer run more smoothly, if you care about privacy or if you don't want to have to pay for your operating system, and if any of those are your main reason go for it and it will probably work out smoothly. If you're interested in linux because it seems "cool" or "fun" you're probably gonna have to do some tinkering so in that case you should be prepared to edit some files, read some instructions and possibly ask for help online.