Selecting photos on a Android smartphone

I am using Uppy via a Plugin with Bubble.

My users have reported that the photo upload experience is quite bad on mobile, since they can only upload one picture at a time. When you first do the upload (on a OnePlus Android) you get prompted to look for photos either directly in Camera or in Files. Normally a photo sharing app would prompt you to look in the Photos. Is this a limitation of Uppy?

Sadly the Bubble Plugin does not include the social media integrations.