I think it's depends on various area, I think my area doesn't have support of VONR although in my area there is 5g available, so if I will go to some place where VONR and 5g both are available then maybe it will show me the VONR option.

See

Bro I also use jio but there is no option for VONR沈

Cause they said, you will get 3 more major updates (14,15,16) on A33 5g.

Dekh vai hum aise hi zyada paise deke nahi kharid rahe hai Samsung walo se phone.... Service achi mile isliye zyada paisa diya gaya hai.... Bakchodi Samsung kar raha hai.... Aur tu zyada Samsung ka 14 mat ban