The save icon is non-standard. As a result, it takes users a long time to find it. There is an established icon for “Save” and it has the following characteristics:
- It’s blue
- It shows a floppy disc
The new icon doesn’t fit, because it looks like those “Download now” or “Update available” icons. The ONLY way I (a power user) knew that it was the save icon, was by its position in the toolbar, and by viewing the tooltip.
While it is true that newer generations may not know what a floppy disk is, they certainly recognize the icon, which is the same in virtually every other program.
If LibreOffice would not change the icon back, I would suggest that the green arrow be made blue, and the ambiguous white box be made to look more like a gray hard drive. This way, the icon would be less similar to “download now” buttons, and also the blue color would subtly remind users of the blue floppy disc they are so used to seeing.