You're observing at EDDN and see the following situation:

Green calls for pushback and gets clearance to pushback facing east
Some time later Orange, who's vacating the runway via D, calls up. GND instructs them to taxi to stand 12 via F, J and M3. It's been minutes since Green got their pushback clearance and they haven't moved yet.

A short while later the situation looks like this:

Green still hasn't moved and Orange has almost arrived at their parking position - so this situation was resolved correctly, right?

Question

You're observing at EDDN and see the following situation:

Green calls for pushback and gets clearance to pushback facing east 
 Some time later Orange, who's vacating the runway via D, calls up. GND instructs them to taxi to stand 12 via F, J and M3. It's been minutes since Green got their pushback clearance and they haven't moved yet.

A short while later the situation looks like this: 
  
 Green still hasn't moved and Orange has almost arrived at their parking position - so this situation was resolved correctly, right?

Answer

Yes - after the clearance for pushback has been issued, the pilot has a time window of exactly one minute to start the pushback.  If this is not adhered to, the clearance is automatically deemed null and void and the pilot must request it again.  Orange therefore had "free rein".

Answer

No - even if green has not yet moved, right before left applies according to § 8 Abs. 1 S. 1 StVO.

Answer

Yes - there was no collision and the controller could have intervened at any time if Green had started to push back.

Answer

No - M3 is blocked by Green's clearance alone and Orange should only have been allowed to taxi to Gate 12 via F, M2 and M3 or instructed to stop on J in front of M3.

Crowdly

You're observing at EDDN and see the following situation: Green calls ...

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