Beginner's installation problem in linux

[nordlicht]

Is https://en.wikipedia.org/wiki/GNOME_Software the successor?

The Wikipedia article is suggesting that. I don't use Ubuntu because they discontinued their 32 bit version as of 18.04, instead I am running MX Linux on two older laptops, MX uses Synaptic as a packet management software.

If you are considering another dedicated version of RC for Linux maybe flatpak or appimage could be a way to go. Personally, I'm fine with the JAR file.