TL;DR: Antec is going to be selling a Steam Deck competitive device, based on the Ayaneo Slide. The device has a slide up screen that reveals a keyboard, which is good because using desktop windows is much easier with a keyboard. However the device’s lowest estimated power draw at low/no load is 15w, meaning it will use comparable power to the deck running at max power. This means the battery life will probably be pretty rough when compared to the Deck. It will also likely have a much higher price point.
You can start by looking at your downvotes, and I didn’t downvote even one of your comments.
Then, there’s plenty out there, but I will humor you with 1 to get you started:
https://www.softwaretestinghelp.com/linux-vs-windows/
Now, if you like Windows, that’s fine, nobody really cares, but that doesn’t make Windows good in any way, shape or form.