I can't see why Linux tools should be much better than decent Windows ones but, if you want to give Linux a try, then Ubuntu is probably your best bet, simply because it's by far the most popular distro at the moment (meaning that there's loads of support available if you get stuck).
Which web developer program you'll need to go with it depends upon your needs. (As with Windows, some programs are designed for people who 'really want to get their hands dirty' with complex coding, whereas others are aimed at people who want to keep things really simple). See here for some of the best options:
https://www.linux.com/blog/10-best-website-builders-linux
I still think that it might be worth trying to find a suitable Windows tool first though. Coffee Cup Free HTML Editor has been around since the days when Fred Flintstone was designing web pages but it's still a fantastic freebie:
https://www.coffeecup.com/free-editor/