Hi there
Hope you're doing well! Thank you for reaching out to us with your query.
The change you mentioned may indeed be part of the app's recent design updates. However, to confirm this, I'll need to check with our product team. I'll follow up with you as soon as I have more information.
In the meantime, as a workaround, you can still access your bookmarks by tapping the three-dot menu (•••) in the top-right corner of the app. Bookmarks should be listed as an option within this menu.
If you'd like to share feedback about this change or suggest improvements, you can provide your input directly to our engineering team through this link: Acrobat UserVoice.
Your feedback is valuable and helps us refine the app for a better user experience.