I’ve read on reddit that Google still provides unlimited photos backup if you own Pixel 5a and lower. On rooted Android you can fake that and get free backup storage, but who wants to give pictures to Google?! I was thinking if it’s possible or done by someone to create an environment on Docker by faking device info to access that free storage and backup rclone crypted files as images (by .jpeg fake extension or something)?
The hard part of the problem is not spoofing the pixel, but preserving your privacy.
Your solution solves the easier problem, but it doesn’t preserve your privacy.