Cold Motor Oil Flow Rates

So, in cold weather you're supposed to used thinner oil in your engine because you don't want oil starvation. If you put a thick, high temperature oil in your engine when it's cold outside, the oil won't be able to reach all the nooks and crannies until the engine warms up, that's the general idea anyway.

I guess my question is, how much does that matter? The oil does have a flow rate at cold temperatures, so how can one tell if the cold flow rate is sufficient when the engine is at idle? Would it be based on the oil or the car's oil pump?

tl;dr During cold weather, can you put a high temperature oil in a car engine and then idle the engine temperature up? Would that lead to excessive wear or is there sufficient cold oil flow / oil pressure? Anyone know how I could tell or where I can read up on it? Thanks!

INB4 that video from engineering explained (which is a channel I used to watch until he made too many errors for it actually be educational) where he talks about why you should idle your engine up.