I am currently using PowerApps to create pictures of a document, and save it as an attachment to a SharePoint list item.
For this matter, I use the out-of-the-box Attachments feature, which has been released just weeks ago.
When I take a picture, it is automatically naming the file with a GUID.
There is no possibility for the end user to fill in a file name. I would like this to be implemented.
Questions on attachments are the less answered at all! Nobody seems to be mastering this topic enough...