Pillars of Eternity does not need to compete with whatever Larian is making - despite the cursory similarities, they are fundamentally different.
Larian cannot write or design UI or combat encounters, while constantly disregarding the lore for no reason (from the Divinity 1 MC in D:OS2 to the Emperor in their latest title, and that lore was not even theirs to take a dump on).
Obsidian, on the other hand, has excellent writing, relatable characters, meaningful and impactful choices, amazing graphics and UI, and engaging combat and stealth. Also, the pause function and system requirements. VA and mo-cap are a waste of resources for CRPGs, while the only paise-worthy aspect of Larian's games is the ability to skip all those mo-capped voice-acted scenes with a well-launched fireball (i.e. immersive sim elements). Which occasionally breaks the narrative (e.g. the boss thrown into the chasm teleports onto the platform to die in a cut-scene), because even this was poorly-implemented.
While it is unlikely with Microsoft, I would definitely back another PoE game.
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Length-wise, I think, Deadfire was shorter, which was most welcome.