@Zing
thanks for the guidance, resolved, it wasn't as described in the forum but I had a light as I couldn't see the video output by xrandr, and somewhere in a post they mentioned that they modified the .xinitrc, I decided to do it and it worked, disabling the output LVDS1

to disable a video output (multi-screen setup) and prevent ES to be stretcht on all screens,

uncomment the line below, and replace output_name by the output that you want to disable on ES startup (ex: HDMI-0)

xrandr --output LVDS1 --off

Force Display Output 1280x720

xrandr -s 1280x720