The TeleMessage website until recently boasted the ability to “capture, archive and monitor mobile communication” through text messages, voice calls, WhatsApp, WeChat, Telegram, and Signal, as seen in an Internet Archive capture from Saturday. Another archived page says that TeleMessage “captures and records Signal calls, messages, deletions, including text, multimedia, [and] files,” and “maintain[s] all Signal app features and functionality as well as the Signal encryption.”
Just don’t even use encryption at that point
https://www.archives.gov/records-mgmt
Archiving communications is not optional (yet).