HI, I hope some of you can help. I'm not a gaming expert by any means - in fact, I'm trying to understand some features on monitors before I purchase one for my son, who uses PS4. At the moment, he's plugged in via a TV which has a 50-60HZ refresh rate. He wants to move on to PS5 when stockl permits (which could be a long time) so at the moment he's very happy with his PS4. He wants to move on to a dedicated gaming monitor for better overall performance. This has to be a budget monitor (so around £250) and I see Asus and Acer seem to do some nice screens. However, some are still only 60HZ while others are 144HZ. If he's playing things like Fortnite and Modern Warfare (think that's the name), would he notice a difference between 60 and 144 refresh rate? There are so many things to consider so wondering if the refresh rate is a very important feature to consider when buying. Any advice would be much appreciated.