>I personally always try to use some alternatives at the same time (XFCE, KDE, macOS / C++, Python, Go, etc.) to see what others are doing.
That's great, I do the same thing so I can relate to you, but I hope you understand that the bar for contributions to an open source project is generally more like "did you write code that the maintainer wants to merge" and not "you must familiarize yourself with all alternatives." How you achieve that varies and not everybody has the time to spend searching around on distro forums and Github. Some people might only ever familiarize themselves with one or two open source projects that they use and contribute to. And it's hard for me to see something wrong with that, that's their prerogative.
That's great, I do the same thing so I can relate to you, but I hope you understand that the bar for contributions to an open source project is generally more like "did you write code that the maintainer wants to merge" and not "you must familiarize yourself with all alternatives." How you achieve that varies and not everybody has the time to spend searching around on distro forums and Github. Some people might only ever familiarize themselves with one or two open source projects that they use and contribute to. And it's hard for me to see something wrong with that, that's their prerogative.