I dont even think 616 maverick has anti- healing factor attacks. Not to mention if it has been shown in was onces, which is far from making it a standard ability
Current 616 Maverick is depowered and doesn't have them.
Agent Zero had them, as it was stated after his upgrade, along with having no scent etc.
he releases his spore instantly
Spores are airborne. And were stated to be flammable at one point.
That's quite enough of possibilities and operating window.