Mine was ordered from Game UK, it was shipped on PS5 launch day but due to me opting to click n'collect from a Post Office I didn't pick it up until Monday 23rd Nov but it arrived at the Post Office on the Friday so was pretty quick service.
Pre-ordered from Argos on sept 18th,delivered on nov 19th via DPD.I also pre-ordered my sons xbox series x from Argos on sept 22nd,that was delivered on nov 10th.
I did feel a touch of envy when he got his xbox on release day,and i still had to wait a week before the ps5 release day!
Given the market and silicon shortages I think it is fairly impressive how well MS and Sony have done in terms of getting that much stock out to consumers - something like 6 million for the PS5 and 3.8 million for the Xbox (MS don't publish numbers though so it can only be estimated).
Got my Brother's off Amazon through a 3rd party retailer called "Entertainment World CANADA!". They said it'd be a seven day delivery, but it only took three. The box was also mummified in tape because that was back when people were stealing consoles in the mail & replacing them with bags of sugar.