Unable to see all pages of pdf in the list details-pdf block in mobile view

only first page of the pdf is seen in mobile view

The embedded pdf block appears as preview on desktop but on mobile view is seen as follows:

Any particular reason?


I have made a quick test on my end from my mobile android.

Indeed, the preview pdf does not load natively in the mobile window, but the preview windows include an option to open the file with the native app:

After clicking the big blue button, here is content: (file is blurred on porpoise)