I am trying to figure out a system for all of my family photos/videos that is easy to use and also private/secure. I have about 5 TB of data that I am trying to figure out what to do with. (I am very new to backing up data/photos.)

Google, Amazon, OneDrive, Dropbox - Not private or secure without encryption which breaks most functionality.

Mega - I always hear really bad things about them being sketchy. App has a lot of negative reviews lately from quality going downhill.

iDrive - Very ugly and seems like it’s missing a lot of features and buggy.

pCloud - Seems outdated and lacking in features. Have to pay extra for additional encryption.

Proton Drive - Exactly what I am looking for but very new, lacking features, and super expensive for 5tb+.

Jottacloud - What I have been using currently and pretty good. However, with them being a smaller company I am not sure if they will be in business 10+ years from now? Will my photos be truly safe here?

So then I was looking into self-hosted options and it seems like there is only one software so far that looks good which is Immich. However, Immich is so new can I really trust using that for all of my photos that I can’t lose?

How is there no big company that offers E2EE like proton or Filen, that has a good mobile app and affordable storage for large amounts of data?

Any suggestions on which route I should take? I am thinking about just getting a 4 bay Synology and using Synology photos but I have also heard a lot of bad things about their app being broken and limited in features as well.

tldr: Looking for the perfect photo storage that has a lot of functionality, intuitive design, good mobile apps for Android/Apple and is affordable for 5tb of space.