I received the pcb HMC751LC4 and I realised that the vias are missing for a proper heat transfer:
I checked the gerber files for that model and this is the drill layer:
Is there any problem with it?
Those are filled vias with Cu overplated on both sides. You can probably catch them with a microscope from the surface flatness. This info is also given on the gerbers note.15, attached on the product page.
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