Alright, I read the both chapters. It's good, I like where it is going worldbuilding, but it suffers hard due to rookie mistakes. Technical writing is good, and pacing is okay-ish.
Chapter 1 is blatant info dump sprinkled with cliches that aren't played with well. I don't like it. Pacing suffers from the info dump, while the worldbuilding suffers from cliche overload.
Sure, post apocalypse happened due to W vs. ME, special superhuman elite vs. oppressed “normals”, orphaned protagonist, mentor dies for hero's growth, and elixir that gives superpowers, CEO is a baddy are tropes that are played TOO STRAIGHT, which makes them cliche. I feel like reading generic "hero's journey" rather that unique fiction. Consider adding YOUR OWN twists to them. Maybe apocalypse happened due to story specific circumstance (for example, from my brain, it happened in trying to stop the superhumans), elite vs oppressed don't have that condescending relationship (elite aren't perfect and oppressed aren't THAT oppressed), orphaned MC isn't orphaned because maybe he had a family who was taken from him or a close-knit group of friends he lost in some unique, story-specific event and so on.
P.S. Scrub that OP powers sheet because it doesn't needs it, or at least hide it under the spoiler tag, because you'll explore those in the next chapters. Right?
Chapter 2 IS the real Chapter 1. It has all the action, all the stylistic choices, and the grittiness that I like in such worlds, brutal and unforgiving. That is how you write properly. Why you didn't do that at the Chapter 1 (it's more like Chapter 0 by this point)? All that info dump in previous chapter doesn't even matter for this chapter. I'd tweak a few things though. There's a lot of external action, but not enough internal one. Add a little bit of it, though. Add short flashback with Selery, so a reader could understand why MC is deeply connected with her. Add some reaction to CEO’s demise. Play up his shock and desperation because he's losing everything he wants to control.
There’s a solid framework here, but it needs refinement. Cut down the exposition, bring some originality to the tropes, and flesh out Zelo as a character. Focus on the action, emotional beats, and making the Homo Aeternus something other than a superhuman laundry list. With some strategic tweaks, this story could hit harder and leave a lasting impact. Keep what works (the action, the world-building potential, the gritty tone), and don’t be afraid to cut what doesn’t (info dumps, clichés, and overpowered abilities). You’ve got the bones; now let’s see you put some muscle on this story. If I saw it in the wild, I would skip it after reading the first chapter.
Also, refine the summary, it feels too cliche and ambigious, which will make the people turn away from reading it.