Currently, each of your APKs identifies as

package: name='com.victorb.androidnetworkscanner' versionCode='1' versionName='1.0' compileSdkVersion='30' compileSdkVersionCodename='11'

because in build.gradle you're always sticking to

        versionCode 1
        versionName "1.0"

That makes updates hard, as Android considers them all identical (it's using versionCode to tell which APK is "newer" – the one with the higher number). And hard to users to tell which version they have installed – they always see "1.0".

So may I suggest, going by your releases, to make the current version something like

        versionCode 35
        versionName "1.3.5"

(feel free to use a different schema for versionName – that's just the "human readable" part and not technically relevant for anything else) – and then keep increasing with future releases? Thanks!

Hey @IzzySoft ! I think it's better to talk there as the previous issue has nothing to do with the discussion xD.
First I had a question. In the fastlane folder I renamed "en-US" to "en" to make it general, is this a problem? And then what are the next steps to make it available on F-Droid?