I am not 100% familiar with android but I believe you still need to install anki on a laptop/computer and then install the ankihub addon there.
After that, you can download the decks on your laptop/computer β sync β click upload to ankiweb β after thatβs done go to your android and sync and click download to ankiweb
I might be wrong so Iβll also ask cc @abdo.nh since Iβm not familiar with android
I have anki on my laptop and synced with all the decks i want from ankihub β then on my iPad i login with my same ankiweb account (not ankihub since thereβs no addons on iPad) β i sync and click download from ankiweb and i can see all the decks there