We switched back to full apk version.
We managed to compress/shrink/clean game assets.
The game is now small enough to be under 2Go, meaning android can handle the full apk.
You can safely uninstall the downloader version.
You'll probably have to move your save files from Documents/RenPy_Saves/loveandsexsecondbase_downloader_itchio to Documents/RenPy_Saves/loveandsexsecondbase_itchio