X11 config file still works under wayland

I have the file /etc/X11/xorg.conf.d/00-keyboard.conf:

# Written by systemd-localed(8), read by systemd-localed and Xorg. It's
# probably wise not to edit this file manually. Use localectl(1) to
# instruct systemd-localed to update it.
Section "InputClass"
        Identifier "system-keyboard"
        MatchIsKeyboard "on"
        Option "XkbLayout" "it"
	Option "XkbOptions" "caps:swapescape"

I have switched to Wayland and, if I’m not missing something, it still works: my caps and escape are swappeed.

Shouldn’t it be a X11 file? (/etc/X11)

This bit indicates that it’s not only read by X11. Also see man systemd-localed?