Looks like I have options from session and Izzy repos, recommended being from session.
Maybe there was an issue with the download? Not sure why the install didn't fail, since the apk file isn't legit. I can upload it somewhere if anyone is curious
I checked Izzy and last update was a month ago, I don't sync the Session Fdroid repo but it must be from them then. It could be a mistake/problem with executing the build. I wouldn't worry too much but maybe use Hypatia and run a scan just to be sure.