Yes and no. Any file which embeds the font data, such as PDF or image formats, and any text that has been rasterized or outlined, will continue to display correctly. These types of files may be reproduced and distributed independent of your subscription status.
Documents that reference fonts on your computer, such as an InDesign or Word document, will show a missing fonts warning and use a default font from the program in place of the one from Adobe Fonts. You would need to purchase a new font license and install the fonts on your computer to continue to display and edit these files.
Can the fonts be embedded in PDFs and ebooks? Can they be used in printed books?
As with any electronic document, the fonts must only be used for viewing or printing existing content, not for creating new document variations, templates, or dynamic content.
You may also use the fonts to create print publications such as books or magazines, but you are not allowed to package or share the fonts with designers or print bureaus. There is no limitation on the number of impressions you may produce.