I don’t know about switching completely, though I’m sure someone can fill in the blanks on that. What I have done, is I just built my wife a new windows PC and took her old one and turned it into a basic PC with Ubuntu on it for my 5 year old to play Minecraft on. So far it has worked wonderfully and has allowed me to learn more about Ubuntu and Linux without having to 100% switch off windows. I also have 2 raspberry pi’s that I have been learning Linux on as well. I’m too plugged into windows to make a total switch, but just my $.02. Good luck to you!