To my understanding it is markedly different. Izzat reflects on all jeets, whereas face is family at most. If you scam a non-jeet this proves the superiority of all jeets, if you get called out on some blatant bullshit this calls out all jeets. This is why ethnonepo is essentially synonymous with jeets; it's an izzat multiplier.
It's not quite that simple. Izzat culture online might reflect such a dynamic, but you grossly underestimate the Han Chinese and their willingness to be sycophants to any cause that:
a) Demonstrates the superiority of the Han Chinese as a group.
b) Demonstrates that their faction (i.e. Communist Party, Falun Gong, pan-White coalition, pan-Blue coalition, etc) is the one that the white monkeys should take seriously and not any of the others.
Ethnonepo also won't get you far unless you're the "right" kind of jeet or Chinese. I can't even begin to tell you how many times I got rejected from local gas stations, 7-Elevens, and even night clubs to work at for my first job because surprise surprise: they're either trying to hire their own family on the cheap with shady visa shenanigans or they just had beef against what type of Desi nigga I am. What makes you think that Han Chinese won't have innate biases? Get out of here, you northern pig! This job is meant for civilised people from Guangdong. That's a sentiment that exists, and it ain't just limited to Southern Chinese biases against Northern China.
"Guanxi" i.e. your connections has a parallel concept in jeet cultures. It's not enough to favour your own jeets or your own gooks; they need to have some relation to you, or at least be classified under the same lowest common denominator (i.e. I am a Han Chinese from Liaoning, therefore I must favour other people who I either know from Liaoning or trust is from Liaoning... or I am a Gujarati therefore I must favour other Gujaratis or non-Gujaratis that I have on good authority are trustworthy).
Finally, and this is perhaps my own diaspora innovation kicking in, but I wholeheartedly believe that "izzat" as a concept, even Han Chinese notions of face, collapse entirely when you emigrate abroad and
must renounce your foreign citizenship for American citizenship. If you see a jeet acting like an intolerable shithead when you're a naturalised Desi person, the impulse in the past
used to be "log kya kahenge yaar?!" (i.e. Dude, what the hell will others say?!) and shunning the offending party. Sounds like a fantasy, but that's honestly the way I remember it being as a kid getting called Osama and Hajji during the Dubya administration. Unfortunately, American neoliberal paternalism means that we're free to abandon any sense of internal accountability we once had.
After all, why bother coaxing your son into taking over the family livery business when you can just have him bring pride to the family by becoming a doctor, a lawyer, an engineer, or whatever in college while also flying over family from India on tourist visas to drive your friggin Town Cars and Crown Vics? Can't front: jeet hatred in $current_year do be making me feel some type of way, but this is the end result of having any and all accountability vanish because of perverse structural incentives.
It ain't enough to get rid of the jeet menace and all their shenanigans, I tell ya. The jeet menace is a microcosm for countless other immigrant communities that have some variant on this perverse dynamic. Not just Indians or Chinese, but also Latinos, Africans, Arabs, Japanese, and Koreans too (among others). The devil is in the details, but immigration itself is a game of details.