Greenwashing - regional fruits and vegetables?

Is buying domestic food climate-friendly from harvest helpers what are the long journeys (car)?

http://www.sezonieri.at/

If you want to get an insight into the working conditions of the harvest workers yourself, the Corona crisis gives you the opportunity:  

https://www.dielebensmittelhelfer.at/

Or is it more sensible if labor-intensive fruits and vegetables are grown in the countries of origin of the harvest workers in order to prevent the "land grabbing" by large investors?

https://www.topagrar.com/management-und-politik/news/rumaenien-plant-obergrenze-beim-landkauf-durch-auslaender-9580265.html

CONTRIBUTION TO OPTION GERMANY