Samsung Word 20 Extremely 5G (SM-N986U1), flashing to T-mobile?

I’m making plans on purchasing an unlocked Samsung Word 20 Extremely (SM-N986U1) and because T-Cell is the one service that does strengthen eSIM, I sought after to flash the TMB firmware on it.

I Have a couple of questions:(*2*)1) Has any person carried out this ? (*2*)2) Will this permit for twin sim / twin stand-by (I’ve Verizon and T-Cell, and I will be able to use each similtaneously on my iPhone however I wish to transfer to Android) (*1*)

Any ideas?(*1*)