Where is the Wayland process?

Hi,

I've installed Debian 13 on a VirtualBox VM with the KDE desktop. At GUI 
login sddm let me to choose if I want to start a Plasma session with X11 
or Wayland. Choosing Wayland, what make me wondered is that a Wayland 
server process seems missing:

~$ ps wwax |grep sddm
    1081 ?        Ssl    0:00 /usr/bin/sddm
    1988 tty2     Ssl+   0:00 /usr/lib/xorg/Xorg -nolisten tcp 
-background none -seat seat0 vt2 -auth /run/sddm/xauth_MsOstO -noreset 
-displayfd 17
    2103 ?        S      0:00 /usr/lib/x86_64-linux-gnu/sddm/sddm-helper 
--socket /tmp/sddm-auth-377483a4-10cf-404f-be0b-e579b24c2d0d --id 2 
--start 
/usr/lib/x86_64-linux-gnu/libexec/plasma-dbus-run-session-if-needed 
/usr/bin/startplasma-wayland --user myuser

~$ ps wwax |grep wayland
    2103 ?        S      0:00 /usr/lib/x86_64-linux-gnu/sddm/sddm-helper 
--socket /tmp/sddm-auth-377483a4-10cf-404f-be0b-e579b24c2d0d --id 2 
--start 
/usr/lib/x86_64-linux-gnu/libexec/plasma-dbus-run-session-if-needed 
/usr/bin/startplasma-wayland --user myuser
    2166 tty1     Ssl+   0:00 /usr/bin/startplasma-wayland
    2184 ?        Ssl    0:00 /usr/bin/kwin_wayland_wrapper --xwayland
    2195 ?        Rl     1:09 /usr/bin/kwin_wayland --wayland-fd 7 
--socket wayland-0 --xwayland-fd 8 --xwayland-fd 9 --xwayland-display :1 
--xwayland-xauthority /run/user/1000/xauth_NAkQOc --xwayland
    2253 ?        S      0:00 /usr/bin/Xwayland :1 -auth 
/run/user/1000/xauth_NAkQOc -listenfd 8 -listenfd 9 -displayfd 69 -wm 71 
-rootless
    2547 ?        Ssl    0:00 /usr/bin/xwaylandvideobridge

Looking at the description of "xwayland" package it doesn't seem to be 
the Wayland parent process:

Description-en: X server for running X clients under Wayland
  This package provides an X server running on top of wayland, using 
wayland input devices for input and forwarding either the root window or 
individual top-level windows as wayland surfaces.

So, how is the Wayland graphical server implemented? I was expecting a 
row such as:

1988 tty2     Ssl+   0:00 /usr/lib/xorg/Xorg -nolisten tcp -background 
none -seat seat0 vt2 -auth /run/sddm/xauth_MsOstO -noreset -displayfd 17

but referred to the Wayland server. Thank you very much for any answer.

Kind regards,