My ask here is for System76 to use a popular and shared tool by many Linux distributions to do firmware updates (fwupd) instead of rolling their own solution only installed by default on PopOS.
I’m not sure if a Dell still offers Linux support out of the box, but you can still easily install firmware updates on multiple Linux distributions using fwupd.
I do this with my home network using FastMail. You can create App specific passwords for each service you add email notification support for. This means you don’t risk compromising your full accounts passwords. You can also put constraints on each app password, such as limiting it only to sending emails but not reading email or looking at your contacts and files. This is nice in case any of my passwords are leaked.