Extensions tab not shown on the iPhone app - impact on Alarm Clock

Was surprised the tab is not showing when using the iPhone remote. For some reason, the tab is showing when using iPad.
Do have my iPhone with me when going to sleep, but not necessarily my iPad or a laptop.
The ideal situation would be using extensions as a standalone features outside settings, but for now even the access to the list is not available on iPhone.
Is it simple the case of someone simple forgetting to enable the “visible property” on the tab?