Natively there is no mechanism in PowerApps to upload files into a document library. This video shows you how to upload files and apply metadata to that file (column data).
here is the the other video i referenced in the end of this video:
https://youtu.be/oy-zau29rYM?si=6y3Nxn4pJwc516By
Download
0 formats
No download links available.
Upload Files in PowerApps to a Document Library | NatokHD