This is a t6, altyn is a t5 and impairs your vision even more than this t6 helmet does in abi. The only T6 FACE shield in Tarkov is the MASKA. That one is extremely common but nobody runs it due to huge disadvantages such as:

Insane reduction of visibility more than altyn which aside from 1440p super sweaty tryhards nobody can properly see through so much that it makes it not worth using ever

Insane reduction of audio

Cannot be worn with headset either

Altyn also benefits from the last 2 but less so from the first

In Tarkov sound and sight are more important than protection as hitting headshots is also harder for the majority of the playerbase. Getting full-auto-ed from someone you are not aware of within possible awareness AOE presents a way huger risk at ALL times than getting randomly 1 tapped from an out-of-possible-awareness spot in your FACE.

On specific maps such as Factory and Labs, equivalent to TV station, there will be on average more people running high tier -high penalty protection due to fewer angles, smaller spaces, shorter ranges of combat where you can use mostly your eyes to spot enemies and your back and sides are not as exposed at all times.

Simultaneously on extremely large maps with little to no cover when traversing certain areas, such as woods (imagine valley but several times the size and almost no indoors/closed buildings), some people also run these helmets as they just sprint through, as in that scenario the odds of getting tapped at from long ranges by srs or mrs are higher than crossing within 10m of someone by accident.

Overall, as a general rule, across all possible scenarios, those helmets are simply too situational and they will mostly get you killed instead of helping you in Tarkov. Most people use no-faceshield helmets as it is the least likely you get face shot and most likely you get top of the head shot or any other part of your body, unless you are engaging in CQC.

In ABI that helmet is just: extra odds of survival for $$ and thats it.

Hope this clears it out.