If block 93 (phase or cam/crank correlation or simiar) shows negative values, could that mean that cam chain link count (the famous "16")
a) too long
b) too short

Ditto on the timing belt:
c) more teeth (clockwise) between cam pulley and crank sprocket
d) less teeth

Again: negative "degree KW" in VCDS

 

I believe it can fluctuate between +/- 5. So you may be ok.

if the readings should be similar to the 2.0t here a vid that was helpful to me.

 

Yes, it fluctuates.
The question is: what does negative (vs. positive) values MEAN. I.e. is intake cam too far advanced (too far clockwise) and ECU takes out (negative value)? Or is is intake to far behind (too far counter clockwise)?
That then determines the corrective action (for example add a tooth of timing belt length between crank sprocket and exhaust cam pulley to move intake came a bit more forward (clockwise).