Obviously you won't be playing counterstrike or games like that with a TouchPad. Bluetooth keyboard with a TouchPad for kbm games from the couch. You can get around that with software that makes it show up as a 360 controller instead, if you're on windows. Dual shock 4 works okay though you run into problems fairly regularly with games that just don't support it at all. Xbox 360 controller with the wireless dongle is the most compatible, though hard to find these days (imitation ones may or may not work), Xbox one or series x controller is not quite as compatible as the 360 but mostly works okay and has Bluetooth. Be sure the tv has game mode to reduce lag. Hooking up your pc direct to tv using hdmi is the best way obviously.

What about playing PC games on TV? Do you do that? What's the best way to feel as comfortable as playing a console while playing PC games on TV? Do you know an efficient one you can recommend? The ones I use always get too much dust and are not easy to clean at all. Maybe I should get a better external cooler. Using an HDMI cable makes my laptop hotter, that's why I tried Steam Link. Should I use a bluetooth keyboard to play on TV? It feels strange using Steam Link, plus my Switch Pro Controller (the only controller I got) doesn't seem well mapped on it. I can use Steam Link app on TV through a Chromecast. My laptop is not that powerful, and my TV is not that large. Even some console ports are not as good as PC versions because of it. Not all PC games are suitable for a controller, though. Beside that, there's a wireless controller for some freedom. As I use a laptop constantly for my works, my eyes and spine suffer.

I feel more comfortable playing consoles on TV than playing PC games.

Steam link for tv