Gee
"Duel SIM" refers to being able to use two SIMs at once (pSIM and eSIM, or, for Pixel 8 series phones this can also be two eSIMs). No Pixel has duel physical SIMs, at least not that I'm aware of.
Gee but I can also use the pSIM for calls/sms and the eSIM for calls/sms simultaneously?
I believe so, yes - but I have not personally tested this configuration so I'm not positive.