Originally I’ve download the signal app through playstore, but often it also get updates from Droid-ify(Fdroid client). Today its weird and I got this . Explain to me this.
On the Droid-ify the signal app is provided by: org.thoughtcrimes.securesms
https://www.signal.org/download/android/
The official website only links to Google Play for the Android client, even on the fairly “hidden” download page.