Lack of search is just a lack of a locally-implementable feature. There's really no security reason why it would be more difficult. Transferring to a new devic

Lack of search is just a lack of a locally-implementable feature. There's really no security reason why it would be more difficult. Transferring to a new device, on the other hand, does get somewhat more complicated. For ease of use, the data needs to be placed somewhere intermediate. That being said, I can understand Signal's hesitation to embrace Google's cloud storage options for such a feature.