The answer is fairly simple but depends on which version of Adobe Font Folio you have.
All fonts in Adobe Font Folio 11.1 (released in late 2011), the most recent version of the product, are OpenType CFF fonts. There are no Type 1 fonts in this product.
For Adobe Font Folio 11 (released in 2007), there is one directory labeled Western Fonts (Type 1) with a single subdirectory __Pi_Ornament Fonts__ that contains only Type 1 fonts. These duplicate fonts that are in OpenType CFF format in the Western Fonts directory. The Type 1 fonts were provided as an aid for users transitioning from Type 1 to OpenType CFF preserving the non-Unicode mappings of symbolic characters in those fonts.
Adobe Font Folio 10 OTE (released in 2003) is mostly OpenType CFF fonts but contains a directory of fonts, both text and symbolic, that had not yet been converted to OpenType CFF format.
Adobe Font Folio 9 (released in early 2001) is mostly Type 1 fonts, with a limited selection of OpenType CFF fonts.
Adobe Font Folio 8 and earlier contain Type 1 fonts exclusively.
There is a very simple rule for determining which fonts are OpenType CFF fonts. The fonts all have the file suffix .otf. Any other fonts are either Type 1 fonts themselves (i.e. the Type 1 font outlines) such as .pfb files in Windows or metrics files such as the .pfm files in Windows.