Can the laptop break?

I'm currently playing a game on my laptop, which is very old.

Can the laptop break if I have turned it on all day?

(The laptop has no battery, it is powered by a charging cable, the charging cable and the laptop gets very hot.)

Yes.

If the laptop gets hot you should maybe put a cooler plate underneath it so there's a pad where coolers are built to buy online or just turn it off because it gets too hot which can damage the mainboard.

Can you just put something cool underneath?

Before that, the PC switches itself off…

You can't destroy anything there. If the PC gets too hot it will crash

So there are certain documents in electrical stores that you can put your laptop on and usually connect it to the laptop with USB and then it cools the laptop so there are coolers installed below that cool the laptop from below, no cooling batteries, I mean by that.

Yes, in most cases it can happen anyway.

Even with very old ones? 7 years old

Yes, at some point it overheats. And if it does not switch off then the hardware breaks.

Yes