Venom the last dance released and we explain Venom dead or alive, its ending at post credit scene.First try to understand about the confusion of Venom's piece which alive in form of cockroach.This whole confusion started with Venom 2.Where in the post credit Of Venom 2 scene suddenly Venom seen in the hotel. It transformed into the hotel of Earth 616.This scene extended in Spider-Man: No Way Home post credit through the spell of Doctor Strange.Where Eddie and Venom are in a bar and talking to Bartender about how there are different types of superheroes in MCU or Earth 616.Then Doctor Strange reverses his spell.So Venom and Eddie Brock return to their universe.But before returning a small piece of symbiote is left in the MCU.This scene continued in Venom The Last Dance. Where after returning to the universe Eddie and Venom in same bar.You must know that this multiverse is like the parallel universe in most cases.Where many events and locations are similar.So this location and even bartender is the same.Then again by traveling multiverse Eddie feels dizziness and and Venom start making cocktail.After drinking cocktails when he giving coins, then small piece of symbiote falls here.And Rex Strickland hold this piece.He carry away bartender and Venom's piece in area 51.This piece of symbiote is falls in Earth 616 and also in Sony Spider-Man Universe.The symbiote of the Sony Universe was captured by Rex Strickland.But it is not revealed yet about the MCU symbiote.The title of Spider-Man 4 is Spider-Man King In Black.So Knull and this symbiotic character may be connection in this movie.
Venom 3 Ending And Post Credit Scene :
We see in ending Venom save Eddie and we sacrifice himself.Basically this concept was that Knull who is trapped in the Klyntar.He needs a Codex to get out of there which have Venom and Eddie.He had the Codex when Venom saved Eddie's life.And Knull want to get this Codex.The only way to destroy it either Eddie or Venom dead.Venom sacrifices himself to destroy the Codex and save Eddie life.Which means that plan of Knull not work.
The first post credit scene where Knull is like this treatment as was the treatment in Thanos in Avengers.When Thanos plan failed with Loki's failure, then a same post credit scene also shown here.After that Thanos' plan revealed in upcoming movie.The same moment is recreated here in similar way.Where we see Kull threatening in the post credit scene of Venom 3.So even after the destroy of Codex how Knull is full with confidence.Obviously Knull will have a plan like Thanos which revealed in upcoming movie.Spider-Man 4 is titled Spider-Man King in Black and Knull himself used this word.One piece of Venom was dropped in MCU.Knull needs also Venom for Codex.So maybe Knull next target will be MCU now.Knull character and all the symbiotes are outside this multiverse.They are all multiversal characters.Even in Venom 2 Eddie and Venom return in their universe from MCU.Because they have hive mind and everyone knew that Peter is Spider-Man.
Venom Dead or Alive Explained :
There was just a reference of a dialogue between the movie in second post credit scene.Here we see the bartender from Area 51 where everything is destroyed.In the beginning of the movie General Rex
caught him here.A broken bottle also lay down here.You must confuse that this is the bottle in which the piece of venom was kept in starting.But if you have paid attention, then clearly seen current in the bottle and also a cockroach lying here.And this is the container(bottle) which was broken by Dr. Teddy Payne.And the reason of Cockroach
shown.Because in the movie Dr. Teddy Payne himself said that whatever destruction you have to do.End the world but Cockroach is the only thing than can survive.This Cockroach is coming out of this bottle touches the current and Venom 3 movie ends.This cockroach may be Venom. Here symbolized that it is almost impossible to kill a Venom like Cockroach.