Gaming Monitor for PS5

Hey OP! Having dealt with this sort of thing before, and if you're panicking about getting a monitor, I'd go with hitting the kid with plenty of jargon so he thinks you've done your research and you're getting him the best deal.

As above, most TVs have a game mode these days and these drastically reduce input lag, if you look at the post from keyboard cat, I'd be totally comfortable telling the kid that you've done your research and based on his concerns about "graphics" and "lag"

"The graphics will have much smoother effects, with the benefit of a 10-bit HDR decoder for much more vibrant colours, making it easier to pick out things in game, as well as a solid 4k resolution as opposed to HD monitor with slightly higher refresh rates which are already compensated for by the TV's inbuilt processor to achieve less tears of the screen. "

"As for the input lag, as long as he keeps it in game mode it will be just as good, and in many cases better than a monitor, which can have input lag of between 5-7ms for budget monitors or even higher, compared to dedicated game mode with 1-2ms. "

That and the fact it's an LG TV who are just hitting it out of the park these days with their TVs and onboard software.

Spoken as someone who has two monitors, both 4k, one ultrawide and still think my TV is the best for gaming.

Stick to your guns, you are in the right, whether you realised it or not :D

P.S. that's a great TV for that price, I've an LG as well, best TV i've ever had, its not quite the same family as the one you have linked but you've got good specs there