It's remarkable how easy Linux Mint is to use, compared to Linux's general forbidding reputation. It was really easy to set up for me who has no coding knowledge. I had to fiddle with the boot order in my BIOS a bit but no biggie. Follow the installation guide on the website, and you will be fine. You can boot from an USB too, and test out the OS before installing it and wiping your drive. Transfer data to an external drive before you do.
And you probably won't have much trouble once it is installed either. The default settings are reasonable, and can be changed. It's a very easy to use OS. I have had no problems doing most of the ordinary things I use an OS for. My most used programs on Windows was already things like Firefox, VLC media player and Libreoffice on windows, and they function just as fine on Linux Mint (and are indeed installed by default).
Gaming has given me some trouble, but honestly Lutris has solved most of them. Granted I run mostly so old games on this laptop that Scummvm and dosbox is a solution for many of them. And installing 32 bit libraries has solved others (running the command in this link in the terminal solved so many issues alone). I play very old games, if you can't tell.
Sure, part of how Mint is so user-friendly is that it imitates Windows graphical user interface. But to be honest, it does mean users coming from Windows are already used to the interface. And Mint imitates only the parts of it that work, like the taskbar. And Microsoft has had a bad habit of making the gui look like a phone or a tablet for years now, so Mint does a Windows-like gui better than Windows at this point.
Mint is better than Windows in being a user-friendly operating system in general. Windows being spyware and full of bloatware is well-known and LInux gets away from that bullshit. And just how polite MInt is about updates is a massive improvement. No forced reboots here while an update takes ages to install.
Mint is a long-term support distro, which means it focuses on stability over the latest updates to packages and programs, introducing updates not when they are first released, but after a while when any bugs have been ironed out. And that improves the OS's stability a lot, which I value over getting bleeding edge updates. If you want updates as soon as they happen, and are willing to tinker a bit to fix things, there are other distros which use a rolling-release model.
It is less demanding on the hardware without compromising functionality. Like the majority of Linux distros takes up way less space on the drive and less memory compared to Windows, you can get more life out of an old computer this way.
There are so many older computers that still function fine hardware-wise, but since the specs on that hardware are too weak to switch to a newer more-resource hungry version of Windows, the machines are abandoned because the OS ends up unsupported and unsafe to use. Windows 10 support is going to end in 2025, it might be extended, but the end of w10 support is going to be a blood bath for this very reason. So many computers can't meet the specs for Windows 11 that the switch will be painful. And I would urge you if you are affected by this to upgrade to a LInux distro instead of getting a new computer just for windows 11.