[meowface]

It'd be hard or impossible to distinguish which ones strip it on the backend and discard the original image and EXIF data vs. ones who retain some of the EXIF data in some way. Just because they don't strip it on the client doesn't necessarily imply they're storing the metadata on the backend. (It just leaves the possibility open.)

[seszett]

Unless they're willfully doing something illegal, when you ask for your data under GDPR you should be able to see if they kept the original images or EXIF metadata, or if they discarded it.

Of course I'm totally ready to accept that most of those companies just lie and hide some of the data they gather on their users.

[kevin_thibedeau]

Use a phone that supports removable media.