My preferred solution would be to draw it without circle for normal transistors, and draw it with both a circle and a pin connected to the circle for the shielded versions.
My best guess is that the added capacitance is more detrimental then the added shielding helps for HF stuff, and the practice has ceased completely.
If shielding is needed, then also the tracks etch needs to be shielded, and a metal can further away from the active currents is a better solution.
Have a look at a teardown of a high quality spectrum analyzer on Youtube. Shielded by thick and custom milled Aluminimum.
Transceivers for Telephone poles are another example. Extreme high quality shielding.
Home high power transistors may have isolated metal parts.
Maybe IGBT modules.