@rick1998
Well, there are some features basically, but many might be in a 'normal' Router/Deco.
Hardware inside of the router that is build for gaming more than likely has items that make it run faster and handle packets faster, like more RAM/VRAM and CPU.
You can Google "What are the differences between a game router and a regular router?" and get more info, I can't seem to paste links here.
If you didn't look at TP-Links page on the router, check it out here ---> https://www.tp-link.com/us/home-networking/wifi-router/archer-ge800/ as it describes the extra when you compare it to a 'normal' router/Deco.
Features that are game specific and connection speeds to your ISP are only useful if you can use them. Some features will work for you even if you do not game play.
There is another TP-Link router with some of the same features minus the specfic gaming stuff, see --> https://www.tp-link.com/us/home-networking/wifi-router/archer-be800/ as it could be a better choice for you if you do not game. However, the price differences seem minimal.