I am unable to delete apps on my iphone

All known to me ways to delete apps do not work.

1. when I hold an app the "x" to delete an app doesn't appear
2. when I go to Settings / General to check if I have any restrictions on on deleting an app, there is no "Restrictions" settings any more in General.
3. When I go to Settings /General / Iphone Storage to delete apps there, I don't see any delete buttons there when I select an app.

Can anyone please help?

Thank you