I cannot get intellisense to work in Visual Studio 2022. Compiling works fine and transfer to the arduino also works.
External dependencies are also not shown.

Intellisense is not working properly when I create a project using the DxCore package by Spence Konde.  Specifically the #defines for the particular chip I am using, e.g. AVR32DA28, are not being discovered by Intellisense.  So for example a reference to PORTA in the sketch has a squiggly underline and a "not defined" tooltip.  However, the sketch builds and uploads fine.
It should be enough to "#include <avr/io>" to access the #defines for the chip specified in the VMicro drop-down list, but this does not work on it's own.  However, if I also add "#include <avr/ioavr32da28.h>" to the sketch I get the part-specific intellisense!  But I have to comment it out before I build the project else I get an error "Attempt to include more than one <avr\ioXXX.h> file."

I have attached the verbose build log for "DA_Test".
I am using latest VS2022 and VMicro.
I get the same result when selecting Arduino 1.6/1.8, Arduino 2 or VMicro (no IDE) for the IDE application.

I have no problems with ATtinyCore and MegaTinyCore from the same author, so I am unsure whether the problem lies with the core or VMicro.