Okay, I don't know if this is a #GTK thing, a #Gnome thing, a #LibreOffice thing, or a #Cinnamon thing, but I just discovered probably the most user-hostile "helpful" behaviour I've seen in a piece of #software in a long, long time.
The find-and-replace dialog in the LibreOffice #spreadsheet - I haven't checked the remainder of the apps - has the typical buttons for "Find All", "Find Previous", "Find Next", "Replace", and "Replace All".
... and no obvious keyboard shortcuts for them. Nothing shown, no #affordances, no typical underlined or bolded letter in each button's label text. Doing a large amount of selective search&replace (don't ask #Etsy cough cough) is incredibly painful. There's *got* to be #keyboard #shortcuts, right?
Here's the #evil: the shortcut keys are not indicated *until you hold down the alt key*. Then it underlines the appropriate letter in each button's label, but those underlines disappear again when you release the alt key.
So you can study this bloody dialog box until the cows come home and never see a hint of a keyboard shortcut, even though it has them.
#$*&!^%@ Who thought this was a good idea?