Karol, I'd shoot Freewell an email at care@freewellgear.com and see if they plan to make one for Pocket 2. They do have one for Osmo Pocket but doubt it would fit Pocket 2.
Hello there Karol. Thank you for reaching out and for the inquiry. Since this is a 3rd party accessory for the DJI Pocket 2. I hope that you will get the best recommendation and information from our fellow DJI members who owns the DJI Pocket 2 who have tried using an Anamorphic ND filter when shooting / filming. Thank you.