It does not affect it all, @PaokCT.
The allocation stays as it is. Every club starts at the entry-level that belongs to the position of the countries. Greece is country #15 for next season.
From that point on - depending on the winners of the three European cups and their domestic result - the clubs in the qualification are rebalanced. That might change the starting moment.
See:
https://kassiesa.net/uefa/2025-rebalance-by-club-ranking.html
and
https://docs.google.com/spreadsheets/d/1vK7MSEWDO3bkqFcAIvhKUOuuVJ5lMdb2aFDHXXO1LI4/htmlview# (tab rebalancing ranking 25/26)
Our start in CL, EL or CoL is not affected by the free spot of the Gavroi. Only by the rebalancing in the cup/path we actually are starting in.