Currently have an Ontario Education subscription for AGOL. Initially I had students collect data using Survey123 which included an attachment for each piece of data (showing trends over time).
I learned the hard way that I can't join my Survey123 layer to a shapefile layer. So, I downloaded the data and added it as a table which is great, but the attachments are lost.
The end game is to create a map like this but have the attachment show up, or a link to it in the pop-up.