Same mate, every room I enter. I could fit the amount of stuff I say every day into one page of a word document.

Cooking guide said 2000 F for 1 minute

Yes but it’s very much so in beta. You can use it but expect loss of some functionality

It might go away if you give it some usage. I had a t440p that had this issue as well and I couldn’t identify what made it stop. It can get really annoying. There’s not really anything you can besides updating the firmware and software or identifying the specific component and sealing it. Or returning it - but the g5 seems nice overall. Maybe talk to a Lenovo rep? I’m just a random guy on the Internet.

According to this you need to upgrade your BIOS. https://support.lenovo.com/us/en/solutions/ht516270-how-to-fix-a-fan-error

Libreboot just replaces the stock BIOS firmware with a Coreboot distribution version. The contents of the flash rom. Things like WiFi cards, keyboard, multi-touch trackpad, usb ports, Ethernet, SD cards readers, etc. could be affected by a new firmware. I mention SD card reader because mine didn’t work on the T440p when I installed Libreboot, but hey, that’s a compromise I guess.