[apitman]

If I only use 1 device for 5 years, then lose it, how do I recover?

[fsflover]

From a backup?

[apitman]

Backed up from what? People only use the cloud for backups, at which point the e2ee is compromised.

[fsflover]

It doesn't matter what people are currently doing. In Matrix, there is a possibility to make reliable, encrypted backups. It can also be done with a simple interface.