It’s going to stop receiving security updates, making it risky to keep it connected to the internet.

It’s probably fine, but if you use the internet on it regularly you could get hacked, and if you want to run newer software on it, that will become a problem.

If you want to try a linux OS for it, I would strongly recommend Bazzite. I just started using it. It works quite well out of the box, and is specifically designed for running windows games on Linux as smoothly as possible.