Since when was Deadpool part of the MCU? Yes it's Marvel, but it's its own thing on the side and for a different audience. Just like the spiderverse movies aren't part of the MCU.
This isn't journalism, this is someone gaining clicks from the topic of the day.
Deadpool & Wolverine is listed under "Marvel Movies," whereas Deadpool 1 & 2 are listed under "Other Movies." This is the best source I can find that D&W is part of the MCU.
It is crazy how of all movies, this is the one leveraging the TVA so much. This is 100% a MCU movie without actually interacting with the MCU timeline (excepting one scene that doesn't affect it).
This movie is a send off to the Fox Marvel movies. I see so much complaint about the nostalgia, and while it's true that this movie has a lot of nostalgia, it is working for the purpose of saying goodbye to Fox Marvel. It's a vehicle to give goodbye to those nostalgia inspiring characters.