New subject: font tools (was "font longevity questions."). [CLOSED]

Monday, 23 May 2022

(Fedora 35)

In the original post of the "font longevity questions/", I said:
...
 By the way, why do so many fonts show up twice
 in the font selection tools? 
First, the only fonts I recall installing myself are the "Nimbus Roman 
No9 L" fonts.
The tools are (in gnome) "Fonts" and "MATE Font Viewer".  There might
be 
others not showing up when I click gnome's "Activities".

I did two screen captures to show what I'm referring to.  They're on the 
google drive here:
1. 
"https://drive.google.com/file/d/1BkB55RW4jqym7_8xRdkExPtPD_XxR1Np/view?usp=sharing".
2. 
"https://drive.google.com/file/d/1b7Pe_ASGEkfJj8XnIZAVaoznPHj1UOsp/view?usp=sharing".
Notice in the first, each of the "Nimbus" fonts shows up twice. When I 
clicked on them, I saw no difference.  In the second screen capture, 
some "Open Sans" fonts show up twice.  When I clicked on them, I saw no 
difference.  Is this how it should be, or is there a bug in the font 
tools, or are some fonts actually on my work station twice?

A second issue is that fonts that are different show up in the font 
tools with the same name.  In this screen capture (on the google drive):
"https://drive.google.com/file/d/1qMfya_ObKot3jNbzYjTI7y17Kb0S83lz/view?usp=sharing",
notice 4 fonts called "Noto Sans".  They are different from each other.  
Notice 4 fonts called "Noto Sans, Bold".  They are different from each 
other.  There are other examples.  This is only my opinion, but they 
should have different names.  Is the problem in the font tools or in the 
fonts themselves?  If the problem is in the fonts themselves, then there 
should be a standard requiring unique naming of fonts.