New Pixel 9 Android doesn't allow me to give Acrobat Reader access to storage

I just activated my new Pixel 9, running Android 15, and I want to read my PDFs that I transferred from my old phone. Acrobat Help pages instructed that I should open my phones Settings, go to Apps, select Permissions, and then tap Storage and allow it access to all my files. HOWEVER, there is no Storage listed under Permissions on my new phone. Therefore, I have been unable to open or read any of my PDFs. Please advise. Thank you.