Thank you both again for the explanations.
From all my travels to/out of EU, I was sure that the passport stamps would be something only secondary to the recorded info on entry/exit taken during passport scanning (both personal or automated checks) and I always thought that these entry/exit data would be available to all EU/Schengen countries by an online system. I did not know that Entry/Exit System was not yet completely integrated.
My travel pattern is clearly visible from my stamps: two TATL travel per year, one in JAN/FEB and the other in OCT/NOV, just for leisure/vacation. Only this year I changed October for June. I have never overstayed (maximum stay was 31 days).
But I am seriously considering to take a flight to Montevideo just for a weekend in the next month just to have a entry/exit stamp on my passport following the Lisbon mess. It is a short haul flight (1h30 min), I would not have to ask for a work leave and I would have a weekend full of high quality entrecots and original dulce de leche!
Thank you again and best regards,
Criske