Before making a purchase, you should search for the exact model number + “Linux BIOS” or “Can’t boot USB” to check for issues ahead of time. Avoid that laptop if you see several users hitting a wall ...
Unless you're using Linux on a virtual machine, installing the open-source OS is usually done via a USB drive. Because of this, you can burn an ISO to a USB drive, reboot the system, boot into the USB ...
A lot of new users come to Linux because they dislike aspects of Windows. That's fine, but trying to recreate the old Windows ...