There may come a time when that package you want to install in RedHat Linux 8.0 is simply not available as a RPM file. The alternative is to download the source and compile it yourself, or - alternatively - generate a RPM file from that source code later on.
But there is another way. Given the fact that Debian-based distributions have way more users than RPM-based ones, the number of available packages in their repositories is greater. Chances are you will be able to find a DEB file for that package you want. Here is how to install that DEB file in RedHat Linux with the help of a small utility called alien.
This is a companion discussion topic for the original entry at https://linuxconfig.org/how-to-install-deb-file-in-redhat-linux-8