Might repeat myself - but to clarify:
Offshore winds can be a huge benefit for wingfoil
If the wind is too light in general, you will get belts of more wind, when a bit or a lot offshore, or if not offshore, but coming up over hills on the other side.
These conditions are HORRIBLE for kitesurfing - but for wingsurfing it might be the deciding factor that makes you get up on foil, and from then on ride on
We are several who has utilized this on "thin" summerdays - and got out going with medium wing sizes only, because of the increased wind.
And then one can just ride the lulls out, quite easy.
A lot easier and better and safer, than with a kite.