Sardinian-like admixture signal in armenians around the end of the bronze age

[tyuiopman]

It's not just "possible" but likely. Armenian language is a Paleo-Balkan language according to some authoritative views, with some links to Greek and Albanian. Paleo-Balkan peoples were a mixture of about 60 % Sardinian-like and 40 % Yamnaya like, though these percentages varied. That is why Armenians show Sardinian-like ancestry while their neighbors don't from what I've seen (certainly not North Caucasians). So combine those 2 and you get proto-Armenians who were Paleo-Balkan like.

"Paleo-Balkan" is kind of a misleading catch-all term for Indo-European languages that don't fit in nicely with the bigger established IE groups. It doesn't indicate that it is from the Balkans, necessarily. And we don't know some of the migratory routes of some of these Paleo-Balkanic groups (i.e. whether they came through the Caucasus or from the Balkans).

Armenian is considered to be equidistant linguistically to Indo-Iranian languages as it is Greek. It is obviously related to Albanian but they are not considered to be as close.

This man is a specialist in Armenian linguistics who teaches at UCLA: https://www.jolr.ru/files/(128)jlr2013-10(85-138).pdf

Georgians actually do have some of this "Sardinian"-like influx (albeit significantly less than Armenian).https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6168346/ If this "Sardinian"-like population was from the Middle East, it makes sense that Armenians would have more than Georgians since Armenians are situated closer geographically to the Middle East than Georgians (and in the past Armenia was even closer to the Middle East than now).

We have genetic, archaeological, and areal linguistic evidence of Steppe-derived Indo-European populations in Armenia prior to the Iron Age anyway.