Just had a play in my conda - yes risky but worked out ok
heat changes work as advertised. I let my 42 beam weapons overheat (101%) for just 2 seconds and had 1% daamage
to sensors (no cost yet so small damage) - more importantly no costly hull damage as it was before.
Supercruise out 890ls to nav point for some fun ... and it was

very busy nav point - 10X more traffic, some wings and a series of type-7's that were wanted - 11k spam in a can every time
got savaged by a wing when I killed one of their wanted members
Also found another wing with only 1 wanted member - fried him and the other 2 ran and jumped - nice touch
What else - havnt played with wings yet sorry
Graphics seem better performance for me in 4k/SLI still a little lagging when you pass the star in view but for sure better
All weapons/shields etc on my ship as they were before
Got rammed by a python in a wing ... shields stood up as usual (and I only have type 5's not 7's)
Clocked up 20 kills and 250k in 30 minutes and headed back to station
Main Repairs : Still 0%
Repairs to hull ...... 29k (it was 0 when i left so I guess that little round trip cost me . prob about the same as before)
Havnt tried interdicting again but will later to see if it still costs 100's of k
all seems good - apart from mission database/server seems not to be up yet
One last thing - fuel scooping with the changes to heat much better now I can scoop @ 70-75 without being in the red
brilliant (ie still under the new 100% which i think was the old 160%)
Thank you very much FD seems a nice release - a lot of hard work