Actionable information is information that others can work with; useful information; rather than simply indicating there’s a problem.
The inxi command asks your system directly for information that can help others to discover issues that might contribute to an issue; it also helps to quickly see details without having to ask a lot of questions.
All this is what’s meant by actionable - it’s information that we can do something with. 
That information posted was partially pre-prepared and directed mainly toward newer users who might not be familiar with how to ask for support. Often there might be much more posted with it, but only the system information portion was important in your case.
You have made a reasonable attempt to describe your issue. There are many newer members that only write one or two lines, leaving everyone guessing what their problem is.
Most of us don’t have a crystal ball 
Thank you for including the full inxi output.
From what I can see, there’s nothing obvious that might be contributing to your issue. I suspect it might be related to the Nvidia driver, as several have experienced similar issues, though, this is only conjecture.
For now, please provide output from the following commands which may also be useful for those who might wish to help.
cat /etc/fstab
…and…
fsblk -f
This portion of your provided logs seems to indicate a likely problem. @linux-aarhus
Quick tip:
If you prefix commands with LC_ALL=C, this will enable command output in English;
for example, if you were performing an update:
LC_ALL=C sudo pacman -Syu
I’m sure someone will help when they are able.
Regards.