https://www.vulture.com/article/the-big-ol-timeline-retcon-of-deadpool-and-wolverine.html
When (and where) exactly does this movie take place?
Finally, these movies have truly begun to resemble the comics they’re based on.
So there’s your answer. Deadpool & Wolverine takes place in the Marvel Cinematic Universe, but also in the Fox* *X-Men universe, in the year 2024 but after Wolverine died in 2029 — while drawing from an entirely different X-Men universe where it may or may not be 2024 (or … 2029). Finally, these movies have truly begun to resemble the comics they’re based on.
The retcon is when Logan died.
Does the writer of that article not understand what the TVA timepad does? Logan dies in the future. Deadpool goes to his grave in the future, because he thinks that the events of Logan don't end with his death, he's in denial and he thinks Logan is probably faking it therefore his timeline won't be erased.