Electrum on Android - where is wallet.dat hidden?
Electrum doesnt use wallet.dat file, those are used by Bitcoin Core. Electrum creates wallet files in %UserProfile%\AppData\Roaming\Electrum\\wallets for Windows, /home/user/.electrum/wallets/ for Linux and /data/data/org.electrum.electrum/files/data/wallets for Android. If forgot seed words, move BTC to another wallet and keep backup info safe if you can.