I read your last answer and find a lot, but i wants your attention towards a knowledge, I have a mind set of that.
What i am find theoretic or practical.
Brahman is becoming One, with Atman and body, when Atman or Body get merge that is called Brahman.
It may merge by enlightened,meditation, Smadhi and more.
In case a person reaching salvation by condemn that Atman and Brahman are the same it has no problem for this which i said.
Because The Atman is same before and after merge.
In case a person found Atman and Brahman is different, same person can reach salvation.
Because every time you birth s new.
I welcome you to judgement.
As per my understanding, a true Brahman (not just attained by birth) reaches salvation and an enlightened Atma.
Unfortunately, this is often not the case.
I suggest you explore your own by personally interacting with priests and monks.
Hope that helps