I have isolated all the glyphs, it gives that font "Kunstler Script" I might be wrong, but it looks very similar.
I was searching for the "R" but it's obvious it was a glyph from another font, or made by the graphic designer "Benjamin Woodlock". He worked on the opening and credits of the series.
For the glyph I tend to think it was edited with a software to better the mood and the context of Ratched.
But feel free to correct me, I might be wrong.
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