My mac is always quite hot and the fans are often at full speed even with moderate activity. Also, when I plug in the external monitor, the computer becomes very sluggish and
kernel_task starts taking insane amounts of CPU.
So it looks like I need a SMC reset.
My question is: what does it entail? Will I lose some settings/configurations? Do I need to back up some data? Is there any risk that the system will not work properly after the reset? As weird as it sounds, I did not see these questions ever addressed anywhere the reset was mentioned online.
This is my working computer, so it would be very inconvenient if I somehow disabled it.