I had a new laptop that I swear would hardlock while watching YouTube, but only when the device was recently powered on (it was on for weeks / months at a time

I had a new laptop that I swear would hardlock while watching YouTube, but only when the device was recently powered on (it was on for weeks / months at a time normally). Eventually someone suggested a solder contact may be less stable when cold, after a few weeks of testing I confirmed this was true (or enough to reproduce the issue) before RMAing the laptop, which has been working perfectly ever since!