hello, would someone have already made the modification for: automatic opening of the tailgate, i saw on the internet that people have done it on several cars, has anyone already done it  on skoda fabia 3, thank you for your answers

Looking at the VW forums, ECS tuning make a hatch pop kit.  I'm not sure if it would fit on a Fabia though, might need some trial and error to do but in theory, it should be possible.

 

Looking into it further, you might just need some bump stop springs to push the hatch up enough for the gas struts to take over, but if the springs / struts aren't strong enough, they may struggle with opening the hatch.