The solution I am building for my client should be able to run on Safari (on iPhone).
I noticed that images that are linked to Google drive URL are not being displayed anymore. They are just hidden. Here you see I use two images: the dog (default from Retool) and a orange image (Zurück). If I run the web application as public link, the orange image is not being shown, it's hidden. Same goes for all other images that have public shares Google URL link.
I am almost certain that some weeks ago this still worked.
Here the link I was using for the image: https://drive.google.com/uc?id=1rBEdsTtz-yK60rmaJ9D8E7fIWvRHDAiT
If you open this app in Chrome do you run into the same issue?