In theory, sure - it's only a concern if you have a work-managed device.

In concept, though, there are more parties with partial control/access to your device from whom you only have a tenuous protection at-best.

Normalizing the practice of automatic archival of encrypted communication is bad. I don't think that's a particularly spicy take. "They say it won't be used except in these specific circumstances" is no better than a fig-leaf, especially when those types of promises have been repeatedly broken.