Is there a way to add code to disable the arrows on embedded Google Slides presentation on mobile?

Hi all,
I am making a survey that embeds Google Slides presentations but I don't want respondents to be able to skip through the slides. The embedded presentations have arrows that allow you to skip backward or forward in the slides.
I found a way to disable the skip arrows by adding a div element over the video frame using HTML, as described in this link: https://community.qualtrics.com/XMcommunity/discussion/7633/how-can-i-disable-pause-button-on-embedded-youtube-video.
But this only works when people take the survey on a desktop. The arrows are not disabled when people take the survey on a mobile device.
Does anyone know why this is? Is it because HTML does not work for mobile devices?
Also, does anyone know a way to do the same thing for mobile versions of the survey? Thank you!