Renewing Home Country Passport After Canada Citizenship

[RefugeeUkar]

Hi, I know some people get their seized home county passports after being PR or citizen but Can I apply a new passport from my home country embassy instead of getting my seized passport from IRCC? What does IRCC do seized passport if I don't pick it up? I feel like getting a new passport is faster than getting seized passport from IRCC. Is there any drawback for this? Thank you