Some apps have really rough edges, for example:
- Caja: by open an SVG-file and get a Dialog with 4 Buttons(Run in Terminal, Display, Cancel & Run) at least two of them make no sense. You can also right click on them to choose the application, however you default application for that filetype is not on this list.
- Panel: Empty panel applets are about 1px wide so you really cant resize or move them to organize your panel.
This actually makes a lot of sense, once you understand, why it is there.
that doesnt matter the file type is text-x-svg+xml and it makes no sense for an SVG. A file manager has to manage the files in a comfort way on my computer an it the file type does't support that feature it shouldnt be displayed(eg have a look at other file managers)
Also, why would you use empty panel applets. I never had one.
Its not about empty panels it about the panel customization in general eg: you have a panel full of applets and to move them you have to unlock them and drag them around. However you get no hint where the panel ends and where the applet begins so you often have to use trial and error to find the right spot by right clicking on the panel space. (Also un unconfigured applet eg like the sensors is empty so its about one pixel width, try to find it with right click on a 4k monitor)
For a much better/friendly solution have a look at the xfce panel where you also can modify the panel just like in mate, however at the same time you can go into the panel preferences where you have a list of all applets/plugins, so you can easily rearrange them and modify their configurations
Just so you know, while Caja does the same with text files, there is a setting in the settings, where you can specify default behavior and the dialog will never show up again. So much for user-friendliness. This actually makes a lot of sense, once you understand, why it is there. This dialog shows up for executable files. And one explanation is SCRIPTS. Because you could either run or edit them. So, this dialog makes it actually MORE user-friendly, not less. Also, why would you use empty panel applets. I never had one. And in the original setup, there is none. Maybe except for the spacer, which is actually there to HELP you with your alignment. Sorry, but I have used Mate for years. So, have a number of other users around me like 2 seniors. Switching from Windows to Linux with Mate, they had like 3 questions. All it took, was less than 5 minutes of explanation. They have been using it ever since without any trouble whatsoever. So, it barely gets more user-friendly and stable than Mate. I completely disagree.