It seems these are still per character, not account wide. The sockets/conduit upgrades from Tier 6 archivist codex are correctly unlocked for the entire account once one character reaches Tier 6, but the renown-gated 226/233 gear is not. I sure hope that’s not “working as intended”, because its pretty hostile to enjoyable gameplay if so.
Yeah, this should be account wide as well!
I’m shocked they even gave us this much and I clearly missed the patch notes notifying us of this change (was this recent?)!
Edit: I see it was in the notes from Hotfixes July, 20th: “The new socket adding item, Alloy-Warping Facetor and conduit upgrade item, Death-Bound Shard should now be purchasable by all characters on your account from Archivist Roh-Suir once one character has reached Tier 6 Research.” It does not mention the 226/233 upgrades and since that’s tied to renown as well as Tier 6, it seems that’s unfortunately “working as intended.”