Thank you for all your updates on these tracks :) I'm gonna 5 star all of them with this same response, cause I have to leave a comment. Good work and Thank you very much for all your detail and work!!!! <3
On your F1 2019 game folder, inside the zip file if you doublé click the folder "F1 2019" inside you can see "2019_asseto_groups" just extract that one on your F1 2019 folder