@Mikey92 this is marked solved - is that still the case?
I am using Pureboot and Qubes 4.04 on Librem14v1, and install the DKMS driver which somewhat improved things.
Important -> Which v1 did you receive, the factory hotfix with 3 additional conditioning capacitors or the fixed version? Mine is the model that had three soldered on conditioning capacitors (New Post: Librem 14 in Pictures), it is hidden under some tape near the left side USB port.
The DKMS driver has improved but not quite fixed it power loss, but I still can’t take it anywhere. It dies suddenly at around 30-40% now, it just means more time before total power loss on light web browsing loads. The battery lasts longer than ~15 minutes now though, more like an hour and a half then fail at about 30%. The DKMS improvement is that it’s actually charging the battery and now at least I can dial in my expectations of power loss a bit better.