Sort and display group members'name in a chat session on the client application.
Reasons to implement on the server side
Not all programming language SDKs and their ecosystem have good support for the Unicode Collation Algorithm. e.g. Dart.
Even though some SDKs and libraries (e.g. icu4x) can support it, they still need to import the ICU data, which is large (>1MB) for client applications. More locales are supported, and more data needs to be imported.
Use Cases
Reasons to implement on the server side