As you can see Nautilus ( right ) shows much more files regarding « recent ».
Nemo just shows files launched through …Nemo.
Nautilus uses tracker so much of files launched through gnome app’s may end up in « recent » in Nautilus.
Any way to make Nemo « tracker » aware ?
( or make Nautilus default file explorer in a specific user’s session ? Not system wide ) → nope, strange behavior with desktop.