>>213999104 (OP)
I say there is no "Bladerunner Universe"
There are three versions of the original movie, the Theatrical Cut, Director's Cut, and Final Cut. Director's cut and Final Cut are mostly the same, you can look up the differences online.
Theatrical Cut has a voiceover narration.
Generally people consider the Theatrical version with the voiceover to be inferior. They say the VO ruins the atmosphere of the film - which is noir, with lots of Jazz and rainy smokey alleyways etc.
I think this is kinda true, but the Theatrical Cut also has a more overtly happy ending, and I like that personally. It's something I disagree with Ridley Scott on - although I agree with him on Deckard being a Replicant.
My ideal cut of the film would be the Theatrical version, mostly kept as it is, without the VO.
Which is to say, watch both: watch like maybe the Final Cut and the Theatrical version.
Any order will do.
Theatrical Cut VO is forced and has at least one current-year-double-plus-ungood trigger word, that starts with the letter "N", but I think it also gives some worthwhile insight.
As much as it's enjoyable to appreciate Bladerunner as a more purely visual experience, there is at least one instance where the VO gives insight into the philosophy driving the film.
Bladerunner 2049 is pretty bad imo. Soulless and sterile.
There's only one version of it, and I guess you could watch it: But I'm not going to recommend it.
I think there are a few official comics and a few anime, but frankly if you end up liking the original Bladerunner there are better non-Bladerunner things that do the Bladerunner vibe.
Better than the "Bladerunner Universe"
There is the philosophy that inspired it.
Why does Roy save Deckard?