Finally saw this. It was... fine. Fun, certainly. Reynolds and Jackman have such chemistry it would be hard to make the movie not fun. I still liked Deadpool 2 better, and thought the Cable team-up was a lot more effective from an emotional standpoint.
That said, this was far and away the most meta of the three Deadpool films. The entire concept of Logan's death causing the Fox universe(s) to collapse and die, with Deadpool trying to find a Wolverine that can hold them together again and using the whole film like a Fox-iverse clip show and send off was certainly novel. Probably the best use of the multiverse concept thus far, in terms of actually using it to say something.
Disappointed Brolin's Cable didn't get at least a cameo. Feels like they really did that character dirty here, but oh well. For that matter, really all of the Deadpool supporting cast got shafted. They really missed out on a chance to have Colossus comment on Wade's choice at the climax of the film.
All told, the weakest of the three Deadpool entries, but still worth watching. I would rate it pretty middle of the road for the multiverse saga. No Way Home remains the strongest film of the bunch, and I think Multiverse of Madness was a better film than this (though not nearly as fun, granted). But it's not the complete disaster that Quantumania turned out to be either.