As I think many community members would have found, the precise way to get images into a Sharepoint list item using the available image controls in PowerApps can be a bit tricky and messy.
I'm currently using a Flow method to upload images to a Sharepoint List item into the attachment column, and I have 10 separate image controls in my app, for a potential 10 images per list item.
But a flow, of course, can fail on occasion, and this messes with the renaming and ordering of images in a given list item.
So instead what I want to do now is grab the base64 encoding of an image from an image control (Image 001 image control), and submit that to a corresponding multi line column in Sharepoint (Image 001 column).
Each of my list item averages 1 to 2 images, but they can have up to 10 images in some cases.
Each image is a jpg roughly 2-5mb in size (so the base64 string is significant).
This is working brilliantly in initial tests, but I've got some concerns about the sheer amount of data in the form of characters I'm plugging into a Sharepoint column. I already need to hide the columns from view in Sharepoint in order for the browser to load the list.
I don't want to build this thing, have it work for a month, and then have it completely melt down.
For reference, he's what the list looks like:

Can anyone give me some rough guidance on this, based on their experience?
Would I be creating data-zilla?
Cheers in advance.