Intellicense difference

I am new to PlatformIO and have a question about Intellisence.
When i open an example in PlatformIO (Blinky) and hover over digitalWrite for instance, i see a popup box with a lot of useful information. I see information about the meaning of the arguments and what the function does. Great, that the reason that i want to use PlatformIO.
When ik create a new project and use for instance the function digitalWrite, i only see “ditgitalWrite(uint_8, uint_8)”.

I have rebuild the intellisence index but that did not help.

Where is the intellisence difference between an example and a new project comming from ? Did i forget something to install or set ?

Thanks in advance ?

I suspect it’s related to the selected platform. Can you show the contents of the platformio.ini files of the two projects?