Android aab file is 90mb but twice when downloading from playstore

packaging for android the aab file weighs 90mb, and I can upload it to the play console normally. But when I download the game in the internal test from google play it weighs 200mb.
(When I used apk format the sizes were 95mb when uploading and 100 when downloading which seems reasonable to me).

Is this normal, or what could be happening?