I know Link2sd app but actually i think to free no much space moving apps in Extsd.
Further it could be risky for the stability apps when the phone works with apps moved.
However i moved the .thumbnails folder in Dcim of my internal sd to ext sd for caution and - i don't know if that it's the reason - anyway i still have few free space (see pic).
But finally i could update the apps that before i couldn't update cause insufficient memory.
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