When i bought my Skoda Kamiq i had different condensation issues on the majority of the lamps back. I think 3-4 times, during first 3 years.
Skoda dident want to replace/take the cost of this, but i managed to get the dealership where i bought the car to replace the lamps (i think 7 different, approx 2000 EUR)
The quality of newer lamps on Skoda has a quality issue. My experience is that its a bit of gamble if you get condensation, not sure if it will go away automatically.
Even with lots of sun (heat) it will not go away, you prob need to use some hairdryer of some kind, but issue will most likely return.
When they replaced my lamps, problem went away, but it has appeared on one, i hope the vent will take it out, but i have my doubts.
Its a common problem for sure...