Do you need a good pc to be a gamer?

If you plan to be a professional gamer, then you need a cool and powerful PC. And if you, like me, sometimes like to play in your free time, you can even do it on a laptop. But a comfortable chair should be for everyone who spends a lot of time on the PC. I'm not a gamer, but I work for a PC every day, sometimes in the evening I can play in Varzon. But my chair is gaming, because it is comfortable and cool. I don't really like office options. Last Sunday I spilled coffee on it, so I'm reading tips on how to clean a gaming chair. I have a medium PC with an old 4GB PX 580 video card.