I want to show the video player controls INCLUDING full screen button. But I'm only seeing this:

What am I doing wrong?
<video
id="video"
controls
preload="auto"
poster="placeholder-poster.jpg"
controlslist="nodownload noplaybackrate"
disableremoteplayback
oncontextmenu="return false"
>
Sorry, your browser does not support embedded video.
</video>
For a brief moment I can see the geneic controls (with full screen button), which I would also be happy to use.

...but I don't know why the controls are suddenly overridden.
Can anyone help? Thanks
How to replicate.............use this html:
<video
id="video"
controls
preload="auto"
poster="placeholder-poster.jpg"
controlslist="nodownload noplaybackrate"
disableremoteplayback
oncontextmenu="return false"
>
Sorry, your browser does not support embedded video.
</video>
....end of replication.