Hello,
I noticed that when I wanted to uninstall Ffmpeg Batch AV Converter (a GUI for ffmpeg), uninstalr wanted to also remove Ffmpeg and another Ffmpeg related GUI, which is a bit aggressive XD.
All of them were installed through Scoop.
It also happened if Ffmpeg Batch AV Converter was installed through the Windows Installer: Uninstalr detected my ffmpeg installation with Scoop and wanted to remove it.
Could you test on your end ?