At around 120C or so lead solder can become weaker, and this temperature is forbidden in devices that experience vibration or other perturbations. Unleaded solders can handle higher temperatures. All consumer products today are RoHS 6 and so do not have lead.
It would not surprise me if a heavily written ss device in an unventilated environment, such a laptop on a bed with a blanket covering it, or left operating in a bag, could get close to such a temperature on the PCBA. It would also dissipate heat to the USB connector of the laptop, possibly weakening it as well.
Looks like there are some data and guidelines are in ISO 13732-1:2006. $250ish per download, as well as probably available in the company intranet/local city library for free access.
From my own observation: Anything over 40C or so feels quite warm to my own touch, but 40C is generally rather insignificant to a solid-state IC.