Using the SPO File Picker SDK with custom web application

Hello,

We want to let user select a file located in SPO from our in-house web application and then store the document URL in the application for futur reference and easy access. The File Picker SDK look like exactly what we need.

https://docs.microsoft.com/en-ca/onedrive/developer/controls/file-pickers/js-v72/?view=odsp-graph-online

Unfortunately we found an issue and are unable to use it.

https://github.com/OneDrive/onedrive-api-docs/issues/1087

Do you know if there is an other control or way to implement this? I heard at MS Build they announce a new MS Teams file picker but can't find any reference to this. 

Thanks