I’ve been on fedora for a while I love the presensce of software to help install most stuff but soon found out that not everything is there now i love fedora alot so i dragged a few friends to the os they loved it too but installation from app images and things needing terminal usage wa a drag so i did a little diy project to help and decide to share to the community
now i know it’s not the best but I did tryso +1 for effort i guess
gitlink is “GitHub - kinglukainzy-ai/Fedora-installer-: A little DIY project by a fedora lover in the middle of nowhere · GitHub”
FYI: Using alien to convert .deb to .rpm can often fail to produce a usable RPM because of fundamental differences in package libraries and install conventions.
for installation of .deb packages, I would use distrobox, spin-up an Ubuntu or Debian-based container, then apt install the .deb package.
for example…
1.) create a distro-container and start it:
distrobox create -n debian-testing -i quay.io/toolbx-images/debian-toolbox:testing
distrobox enter debian-testing
2.) install a package:
sudo apt install ./<package.deb>
3.) export the app to Fedora (saves you from distrobox enter every time you start the app) 
distrobox-export --app app-name
Example for discord.deb installed in debian testing after export:
That’s a much cleaner approach than alien honestly. I’ll look into integrating distrobox as the preferred .deb install method
Note that almost everything available as a .deb package on ubuntu and similar is also available by rpm on fedora and similar.
It would be much easier in most cases to identify the equivalent packages for fedora and install them as native rpm files with dnf instead of migrating packages from .deb files.
The rpm packages are automatically updated. The packages migrated from .deb files do not get updated on fedora except by manually performing the upgrades and replacing older apps.