When Microsoft finally pulls the plug on Windows 10 its successor will be four years old, and for three of those, it was never the OS of choice amongst Steam users
to get started, download a linux OS .iso and write it to a usb with Balena Etcher. boot to that usb by selecting it in your bios/uefi (restart the computer and smash the del key a whole bunch to get there) :)
its basic, but this is the part that can confuse those who arent so tech savvy and want to switch <3
Start now friend, it may take time to find alternatives for some of your workflow, also to find a flavour you prefer, Ubuntu, Debian, Mint, etc, there is a lot of choice. I've been slowly trying to get everything setup for a while now. Only a few more little apps and things to finish the switch. sadly I will still need windows for several VR games performance wise, some are just too stuttery on nix. I used to love Ubuntu/Gnome but KDE is a better environment, from the reading I did, for VR with an Nvidia vid card