Just so you're aware, it's super easy. You can even leave your Windows drive(s) the same if you want too if you're up for buying a new drive. Linux can access the data fine —though probably not the other way around, depending on the format of your Linux drive(s). I have a drive that's mostly media from back when I used Windows that just works like any other, but a worse format but that hardly matters.
If you're a gamer, Garuda, CachyOS, or Bezzite are good and take minutes to set up, and come with everything you need out of the box. Bezzite is immutable, so it's harder to mess up, but it also limits what you can do (which probably doesn't matter for you). If you do need help, which you probably won't because it's easier than installing Windows, you can ask and plenty of people will volunteer.