TV always switches to LibreElec H/W at power up

Hi. I have a somewhat annoying issue in the every time I turn on my TV it switches to my RPi running LibreElec. My RPi is powered by my TV (Samsung).

I have a feeling it's CEC related.

If I turn Off CEC I'm the LibreElec setting I think I lose that ability to control LibreElec with my TV remote (right?)...which would be an inconvenience.

Is there a way to turn Off the automatic input change on the TV? I use LibreElec only for movies.

The only other idea I can think of is powering the RPi manually when I want to use it.

Thanks VLouis for the reply. I've been away for a few days and only saw this now.

When I go to that setting it's already Disabled.