I was cooking some food when I noticed a burning plastic smell and some smoke coming out of the knob, I let it cool down, and when I turned it back on, there wasn't any smoke but the burning smell returned, is the plate damaged, or is it some stuck food being burned?

The burning plastic smell seems to be coming from the plate, even when it is dissassembled like this, i can smell it from the centre.

I recently dual booted linux mint on my laptop, and I came across the infinite squashfs error (an infinite amount of "SQUASHFS error: Unable to read page" and "SQUASHFS error: Unable to read data counting up, I think because I took out the usb and pressed enter too quickly) I couldn't do anything, so I shut down and restarted, upon restart, its running fine? No corruption.

Edit: I reinstalled and waited a while after unplugging before and enter did not work, I hit escape and this happened again, though text is bigger and slower

I'm considering switching to linux but I'm not a computer savvy person, so I wanted to have the option to switch back to windows if unforeseen complications (I only have 1 pc). Is it just a download on usb and install? And what ways can I get the product key or "cleaner" debloated versions.

Is it a physical structure of the chip or is it programming? Because how can linux ARM run on a device that used to run windows x86?