Hmm… I thought at the very least you needed to layer intel-media-driver for VA-API support for Intel.
Yeah, powertop is essential and should come in the default image. How else are you going to see exactly how much power your machine is using at any time? I wish PPD+Powertop --auto-tune worked for me, but the powersave scheduler it uses lets my Alder-Lake CPU run wild and gives me a good 2-3 less hours of battery life.
I plan on sometime investigating how to make my own image using Universal Blue, because really all I need is Silverblue+Surface Kernel+TLP+Hardware Accelerated Video. But too busy right now.
Nah, Pandoc Markdown is the true path.