The future is now, depending on where you live. https://www.bbc.com/news/world-asia-51321661
The future is now, depending on where you live. https://www.bbc.com/news/world-asia-51321661
How did you go about installing the other two packages from git? Do you know what directory they were first cloned to? Did you build from source or run an executable like an appimage? Did any of these actions occur prior to the install of masterpdfeditor?
You can perform the bios update via bootable media. Here are the readme and iso links.
I can’t help you with the recovery media, but a couple of the problems you describe were resolved with driver and firmware updates that are still available from the oem.
Is that a plug i see there on the end? Have you considered removing it and opening the valve a little to see what comes out?