I like caja. 'caja' is spanish for 'box'. easy to remember the name that way.
(no, not THAT kind of box)
And 'pluma' (the editor) retains everything I liked about the gnome 2 version of 'gedit'. [gnome 3 gedit is CRAP and irritates me]. 'pluma' is Spanish for 'pen'. also easy to remember it that way.
OK Mate is just _SUPERIOR_ to Gnome 3, that's all. Heh.
(and FreeBSD has _NO_ systemd, nor will it, EVAR)