There was a video that tried to make sense of it.
Basically, the original DK is still canon, but neither Mario nor Pauline were present. Instead, Cranky kidnapped Lady - which is referenced with Pauline wearing Lady's dress - while Jumpman was the hero to save her. This is not the first time K Rool met DK, they make it pretty clear he has been out of commission for decades between himself, Cranky and Diddy. It is safe to assume Bananza takes place after all 5 DKC games. Where the timeline gets messy is with Pauline referring back to Donkey Kong in Odyssey, but it is theorized that she is actually talking about DK GameBoy (1994) and not the arcade game - even if Odyssey mostly references arcade.