Librem 13 crashing repeatedly

Sorry to resurrect this dead thread, but I have been experiencing a lot of crashes lately. Is what you wrote here (way back when) still valid?
My crashes are slightly different from what is described here. My screen freezes and if there is any audio playing when the crash happens the audio loops at two second intervals until I kill the computer with the power button.
My out put from doing cat /etc/apt/sources.list is:
deb https://repo.puri.sm/pureos amber main
deb https://repo.pureos.net/pureos/ amber-security main
deb https://repo.pureos.net/pureos/ amber-updates main
Does that look wrong?

No.

Some is. Some isn’t.

All the stuff about green is obsolete. It should at least be amber if not byzantium.

All the stuff about always running the latest software (apt update and apt upgrade) is pretty good timeless advice.

You should specify what hardware you have (make/model/version).

VERY important … on ANY machine if you want to update BIOS/UEFI, make sure that you are using some form of battery back-up … if you get a black-out during the update you have a high chance of bricking your machine …

laptops/smartphones already have a battery but with desktop/workstation/servers/IOT that is not always the case …

Librem15 version 3