Ceph is great, we run critical infra at work on proxmox with ceph. Very reliable in my experience. It was definitely helpful for me to have ceph experience from my home cluster when starting there.

Works great here, and my users are very happy with it. Not disputing your experience, just saying it’s not universal.

Could be a compatibility issue with amazon’s android fork? I have only used the android client on google pixel, samsung phones and AOSP builds.