I contacted my PI's, so I just wanted to give out some info that they gave me!
Windsor PI says that they will start reviewing applications and scheduling interviews in the "near future", which interviews typically being around end of January/early February.
UBCO PI just said that they haven't began reviewing yet when I talked to them last week, so they may have started to review now.
Just thought it would calm some of us to know that they likely haven't even seen our applications! It's nerve-wrecking to hear about all the US applicants hearing back this early, so just know that our timeline is different.