Did you change the nozzle setting in your slicer to 0.8? They usually default to 0.4

It definitely looks under extruded.

Are you sure the gcode actually makes the printer change temps? Good thing to double check since it looks the same throughout

I don't know what your setup is but that looks to me like you need a higher flow melt zone and better extruder grip. I was able to get out of a similar situation with particle filled filaments using this: https://kevinakasam.com/papilio/ and further improvement with a hall effect filament width sensor but the tinkering for that was an actual nightmare.

wood filament is also just cursed. the improvement to regular filament was much better while the particle filaments just went from similr to your wood filament to tolerable.

This is how my wood PLA+ prints used to look too. Your extruder is almost 100% the issue. These filaments are spongy and don't extrude well. Try toying with your extruder tension and if that fails get a BMG knockoff

I am definitely thinking you have a partial clog. Get that sorted out first, then run flow rate tests as well

Looks to me like the plastic isn’t getting hot enough fast enough.

Is it just wood filament that isn’t printing right? Can you print pla or whatever on the .8mm?

Does the filament brand suggest a range that’s higher than you normally print at?

What are max print speed and volumetric set to?

For some filaments (silk PLA) I've had to slow things down (120mm/s max print speed and 10mm3/s max volumetric speed) or it comes out horrible. Only used 0.4 nozzles so far though.

Have you tried adjusting the e steps?