Do these photos shows Venom in real life? Or some sort of “seed person”? Perhaps this was caused by 5G?

All the claims are real, but they are of course not true. We are looking at props for a Danish TV-series called The Rain. You can see the same prop in this screenshot via IMDb. In the series, some sort of virus is causing this condition.

The Rain Seasons 1-2 Official Recap clip shows some variations of this special effect.