Your BFCM landing page receives your most expensive traffic of the year.
A BFCM page receives your most expensive traffic of the year, so page weight costs more here than anywhere else on the site.
One offer per page converts better than a page listing every deal, because a shopper arriving from a specific ad wants the thing that ad promised.
The page must never state a discount the cart cannot deliver — mismatch between promise and checkout is the fastest way to lose an expensive visitor.
Build it in October, freeze it in mid-November, and have the offer messaging driven from the same source as the discount itself.
A collection page works well when the offer is simply a discounted set of products, and it has the advantage of already existing and already being indexed.
The full guide has the formats, the deadlines and the worked examples.