Should be in your internal storage (not root), inside a folder named "org.electrum.electrum".
There'll be no notification but an in-app message near the center of Electrum saying "Backup saved" followed by the backup directory.
Yeah... I don't get that "toast" message (the in-app popup)... it just drops straight back to the wallet overview screen and there is no org.electrum.electrum folder created anywhere. There'll be no notification but an in-app message near the center of Electrum saying "Backup saved" followed by the backup directory.
I'm running on a Samsung Galaxy S20FE on Android 13, so I assume it's related to the issue that Edwardard referenced regarding storage issues and the way that Electrum is attempting to access the file system. I'd take a dig around the source code, but I haven't done any Android dev work in a looooooooooong time... not even sure I have the ADB installed these days
