Why is there no scroll bar in the course content?

Hi Team ,

I have an external HDR monitor. When i maximise the window, the bottom part of the course content containing different buttons, including pause, play, settings, mute etc. is not visible. Please see screen some attached screenshots. Tried different browsers and different resolution settings still.
Please see attached screenshots to explain the issue.
If there was a scrollbar in the course content, that would be helpful. There was another ticket , where a up, down, will help. That does not work as well.

Quiet uncomfortable with this option, only way is to make screen much smaller to view the buttons.

Regards,
Palani

Screenhots.