The stairs turning out towards the office does create a dilemma. I agree with the comments about creating a recessed entry into the office. From the foyer/stair side you will have "walls" that can be beautifully trimmed out as a recessed entry to your french doors. On the office side, you will see a wall of built in bookshelves. I have seen this done with bookshelves that span across the top of the door and down the sides, creating an "entry" with walls and ceiling. If the built ins are done well, it will feel like a wall - not bookshelves. The doors can then be attached 15" to 18" into the room. Here's a pic from Houzz and there are other examples if you search on bookcases around door, including one using pocket doors (sliding into the walls)
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pocket doors
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