I am writing this post to share a solution that was difficult for me to figure out.
All of the details shared below were found in Bubble docs and this forum, but these details were all spread out.
If you have any improvements or related info to share, please add that in the comments! (If needed, I will update this core message with new Learnings.)
This solution uses the Multi-File Uploader plugin. (Dropzone - Bubble Docs)