Hallo @qubesnewbs and welcome to the community! I am familiar with your struggle. I am not a technical user. I’m a law major. It took me 6 months of attempts, and the release of 4.0.1 to be able to install Qubes my laptop.
Today, my recommendation is to install Qubes Release 4.0.4-rc2 instead of 4.0.3, especially for new hardware. Sometimes, even the latest release will not support your hardware, so you would need to install kernel-latest and/or kernel-latest-qubes-vm which, I admit, are not easy to figure implement for a new comer. However, lacking IT expertise and knowledge myself, I did find the documentation to be very helpful after the initial months of testing.
Prior to me installing Qubes the first time, I had watched the few available videos back then. There are way more now on YouTube. These videos helped figure out the basics that allowed me to begin several months of learning. (But see warning here for these videos)
However, I faced and still face some problems and shared these problems on this forum (example).
Regarding reset PCI device, it happened to me and I fixed it by asking on this forum and researching around the internet. The solution was to go to settings of the Qube where there’s the problem, then: > Devices > Configure strict reset for PCI devices > disable for the 0000:00:14.0 in your case.
And final note. it would be good if you share your laptop model/year to help people with the same laptop find this thread.