A desktop tool mostly offers recent files. I am used to press Alt+F and then 1 to open the first recent files. It seems that I learned it from Notepad++. I thought it was a "platform convention" (refs Usability Guidelines), but it doesn't seem like that.
Here are some examples. What would you recommend why? Maybe I am a too old-school user wanting to have the list of recent files with one action (one hotkey), not with a combined action (two subsequent hotkeys).
(I want to change that --> https://github.com/koppor/jabref/issues/313, but I am unsure)