What's happening when my laptop freezes and goes BRRRRRRRRRRR?

Title + What do I do? The whole screen will freeze and my laptop will make that sound, and a second later it's back to normal. It's usually when I have a video/ Zoom active.

I'll add that it's also had issues with overheating and becoming hot to the touch (metal casing), particularly near the Esc button. Getting a fan-base has helped, but HWINFO is still saying one of my p-cores is overheating/ throttling whenever I check it.

Info: Acer Swift Go 14, Windows 11, Intel Core i7, Intel Iris(R) Xe Graphics, 2.01 GB/ 16.00 GB physical memory available.