1. The problem is that extraction usually creates a couple of sub folders:
xyz.2019-xxx.r01
=> /xyz_xxx/xyz.2019-xxx/xyz_xxx.mkv
while the already extracted file is located in the root of the folder:
=> /xyz_xxx.mkv
So its not scipping because it does not get it.
2. that would be an option, although I dont know how to do that....

I'm calling filebot on the parent folder:
/media/input
and inside this folder are x sub folders:
=> /media/input/xyz.2019-xxx
=> /media/input/abc.2020-ggg
So once filebot is called, all folders insider /media/input will be checked automatically...