Ah, I see - so if you had a clear transparent roof, then you could clearly see the wing above you. That pic in my OP seems to show the clear roof, as well as the open & exposed sides which should give your hands & arms plenty of room to control the paramotor. When it comes to launching, people do launch on trikes like the mini-bullet, which do seem to have their roll cage bars above the pilot, yet they seem to still be usable.
Perhaps what’s needed is the clear bubble canopy shape.
Or take a look at what this guy has on his recumbent e-bike:
It’s not fully enclosed, but it looks like it can effectively block an oncoming airstream.
What about what I suggested about somehow drawing off heat from a paramotor engine, perhaps using bendable copper tubing, so that it gets to your hands? That engine is producing plenty of heat, so why not make use of it for your hands? Has anybody ever tried anything like that? Maybe you could have gloves made out of some kind of fine chainmail or metallic mesh, or something that easily conducts heat?
Chainmail vs Metal Weave:
The ability to protect your hands from cuts, abrasion, etc would be an added bonus - like if you took a tumble during a foot launch or foot landing.
Likewise, it’s available for socks too: