Amp story

• Resolve ScreenOrientation lock Illegal invocation error on Chrome #35659
• 🐛 Toggle desktop attribute on tooltip overlay #35772

Story performance

• 🚀 Set "load first page only" experiment to 50% #35770

Animation presets

• Desktop panels mode, start animations after page transition #29753

Others

• Pause button on story player not functional #35640
• 🐛 Reset page attachment scroll position upon attachment close #35778
• [Page Attachment Forms] Remove the soft keyboard from view when the page attachment is closed #35798 (PR pending)

What's next

• Remove desktop 3 panel code #35623
• [Panning media] support portrait images and officially launch #31515
• [Story video] Optimize media play/pause operations on page navigation #29508
• [Story performance] Set up story prestyle #35829
• Allow amp-form in Story Page Attachments #35569