@msbellows @TheJen I use and suggest Linux Mint. It's more Windows-like than other Ubuntu offspring. The team deliberately does not include the latest releases of kernels and other important software, which might have undiscovered bugs, and makes bug fixes in their own versions of released code. It's pretty solid. If you do not have the very latest video card, it should detect everything and just work. The desktop look and feel should be familiar. This PC is running it, as is the one I use for Unreal Engine game development.
There seem to be many Linux Mint users on mastodon, so should you run into trouble, ask.
Make backups of all documents on the Windows system that are worth keeping. The storage medium will be re-partitioned and reformatted.
Firefox is pre-installed. Other browsers are available.
If you create the installation medium and it boots, you're already running Linux Mint. There are instructions at the website. Essentially, make sure your BIOS allows the installation medium to boot before the hard drive.
Double-click on the Install Linux Mint icon on the desktop (whatever it's called - it should be the only one).