When can I know for sure if something is wrong? (High Sierra -> Sequoia, MBP 6,2)

I see that it's common for devices to be stuck at the "less than a minute remaining" screen for hours on end. It's been around 3 hours and I'm patient and willing to wait but I had a few questions. The caps lock key is in fact lighting up green. The progress par is full.

1) Should I be able to move my cursor? The screen is not showing a cursor or anything of the type.

2) Should I be able to hit Command + L to see installer logs? Nothing happens when I do this.

The fans are running loud and the device is extremely hot, but I wanted to verify if this means that the installation has failed and that I should try again.

Thanks in advance!

Author: @OkAmbassador3639