I’ve got the buds fe and they fit and are comfortable enough for me. They have noise cancelation but it depends on your expectations. They do not completely block noise. They definitely lessen it significantly, but you will still hear what’s going on in the backgroundat a low level.
Back up your photos and videos. There’s no reason to keep every photo and video you ever take on your phone. If you actually did permanently delete stuff that was important to you like you claim, then that is 100% your fault. I back up anything important to both my PC and a backup drive. If you don’t ever backup/transfer your photos and videos from your phone, then nothing Samsung does is going to be enough for you.