Thanks for taking time to reverse engineer how Figma works on background. Wondering if info like saving buffer changes to DynamoDB are published by Figma on a blog or you just inspected this behavior in browser, the same for S3 and postgress?
After all, Figma is an excellent product except the loading time on existing documents 5mb or more, design files, take time to open up reminding me Photoshop 7.0 days.