Ever since the Apple developer portal and App Store Connect merged, I got confused with the summary. I like knowing the diff between App Store Connect roles. Here's a detailed list of what each role can do:

AppStoreConnectRoles.md

App Store Connect Roles

	Developer	Developer with certificates	AppManager	AppManager with certificates	Admin	Account Holder
App Features
Upload Builds	✅	✅	✅	✅	✅	✅
Edit App Store Details (Read)	✅	✅	✅	✅	✅	✅
Create Apps and Submit Versions			✅	✅	✅	✅
Edit App Store Details (Write)			✅	✅	✅	✅
Manage Promo Codes and Promo Art			✅	✅	✅	✅
Manage TestFlight Builds (Read)	✅	✅	✅	✅	✅	✅
Manage TestFlight Builds (Write)			✅	✅	✅	✅
Manage TestFlight Testers (Internal Only) (Read Only)	✅	✅	✅	✅	✅	✅
Manage TestFlight Testers (Write)			✅	✅	✅	✅
Edit App Pricing and Availability			✅	✅	✅	✅
Submit In-App Purchases			✅	✅	✅	✅
Create In-App Purchases	✅	✅	✅	✅	✅	✅
Edit In-App Purchases (Read Only)	✅	✅	✅	✅	✅	✅
Edit In-App Purchases (Write)			✅	✅	✅	✅
Manage Game Center	✅	✅	✅	✅	✅	✅
Manage Leaderboard Scores			✅	✅	✅	✅
Reply to and Edit Responses to Customer Reviews (Read Only)	✅	✅	✅	✅	✅	✅
Reply to and Edit Responses to Customer Reviews (Write)					✅	✅
Reset App Summary Rating			✅	✅	✅	✅
View Crash and Energy Reports in Xcode Organizer	✅	✅	✅	✅	✅	✅
View App Analytics					✅	✅
View Sales and Trends (All Reports and Sales)					✅	✅
Provider Features
Manage Sandbox Testers	✅	✅	✅	✅	✅	✅
Manage Users and Roles			✅	✅	✅	✅
Manage App Access			✅	✅	✅	✅
Manage Agreements, Tax, and Banking					✅	✅
View Payments and Financial Reports					✅	✅
Catalog Reports					✅	✅
Developer Features
Purchase and submit Technical Support Incidents	✅	✅	✅	✅	✅	✅
Download beta software	✅	✅	✅	✅	✅	✅
Eligible for other membership benefits	✅	✅	✅	✅	✅	✅
Download provisioning profiles		✅		✅	✅	✅
Submit certificate signing requests		✅		✅	✅	✅
Create and delete development certificates		✅		✅	✅	✅
Create and delete distribution certificates				✅	✅	✅
Create and delete provisioning profiles				✅	✅	✅
Approve certificate signing requests				✅	✅	✅
Create and delete App IDs				✅	✅	✅
Other
Generate App Store Connect Api keys						✅
Accept the Developer Enterprise Program License Agreement						✅

Here's how it looks on Medium
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