How many devices can be on an apple ID?

https://www.apple.com/legal/internet-services/itunes/us/terms.html

"For any Service, you can have up to 10 devices (but only a maximum of 5 computers) signed in with your Apple ID at one time, though simultaneous streams or downloads of Content may be limited to a lower number of devices as set out below under Apple Music and Apple TV content. Each computer must also be authorized using the same Apple ID (to learn more about authorization of computers, visit https://support.apple.com/HT201251). Devices can be associated with a different Apple ID once every 90 days."