The Download Option is not showing on NextCloud Client Phone

I have given to the user the option to download the file and he can download it when he is using the nexcloud web version.
But, when he is using the nextcloud client on the phone it does not show at all the download option.
I guess a bug, or what it can be?
Thank You

Please add some screenshots for context of what you are explaining. Thanks.

Android or iOS?
Is this person using the Nextcloud mobile app?