Can someone please idiot-proof Svarbhanu?

[Omedon]

Third dungeon. Final boss. I'm going on ten pulls over two daily play sessions, and I just... I promise I'm not as bad as this fight makes me look, but I can't decode this fight's mechanics. I'm playing my main job, Samurai. There's a phase that sometimes happens early, usually later, where I just can't parse where I'm supposed to stand. Sometimes it seems red is right, sometimes blue, and often a late wipe happens with multiple successive "move or die" mechanics.


I'm sorry if this has been covered elsewhere, but I have to tunnelvision any and all FFXIV media consumption to avoid spoilers, but this seems a dead stop to my progress and I needed to risk talking to the community. Also because I'm so tunnelvisioned "getting carried" by live people isn't really much of an option either. Probably not gonna get this down before I go to work again so I'll have another day to read guides and hope something clicks.

I just don't get it.

(Edit) UPDATE:

So I'm back at this fight as alt-job leveling content, and I'm literally still one major epiphany away from, like... "getting" one, JUST ONE mechanic that constantly kills me except the times that "I don't know how I lived but I still don't get it" kinda RNG happens.

Now that I can look outside the tunnel of spoilers (not that I intend to spoil anything here but like, I was WAAAY sequestered when I started this thread, youtube locked down, the whole deal), and so not in a hurry, I can take the time to use the names of the mechanics to talk about what I'm having trouble with:

It's the final and "repeat until dead" incarnation of Aetherial disruption.

-I know to go the opposite color/symbol of what shows up in the middle of the screen.
-I know to make room for knockback when it gets added (now leveling a job that doesn't have arms length so this is a consideration again) so as to not get DoT'ed at the edge, AND to make sure I only travel within the proper color.
-I know to observe the spread effect that messes severely with the anti-knockback placement

I do all of this, and after the spread meteor hits, a SECOND meteor is the thing that kills me. Always. When I die it's always this second hit. I look for tells outside the arena, I don't see them like I do in the "crumbling sky" phase, but every single guide says there's another version of crumbling sky that happens in this final mutation of aetherial disruption... I just can't see the tells, and so I run the boss until RNG doesn't drop that second hit on me. That's the only way I win.

What are the tells? I've completed this place a grand total of twice and always after at least 5 pulls. It was 20ish my first time. I've literally timed this dungeon out on this boss. It's this ONE thing. I'm one "epiphany" away from being able to rely on completing this dungeon, but I haven't crossed that line yet and it's frustrating as hell!

FINAL EDIT!

I HAVE HAD THE EPIPHANY!

It's the timing! I know there are a LOT of mechanics the higher you go where it looks like "there's nowhere that isn't orange," but it's about the order of explosions. This is one of those! It finally hit me that there's a significant delay between when the spread mechanic starts its tell, the knockback goes off, then you have seconds to execute the spread! I was often getting DOT'ed because I felt I couldn't go right into the center because "it says spread, I have to spread," but you don't until AFTER the knockback! It's a thin window but so is every overlapping mechanic, this is just a different version of it! It's the timing, that's the key!