Robot Vacuums Privacy

Looking for a robot vacuum and mop to either root and put Valetudo on it or one that prioritizes privacy (offline modes.)

bObsweep UltraVision claims:

Make no mistake: UltraVision fully respects your privacy, UltraVision never sends images anywhere - servers, cloud, or otherwise - be it of your room layout or your cleaning habits. Furthermore, any info you personally insert into the app, such as your name and email address, is stored on US-based servers. Nothing gets exported to foreign servers (unlike your neighbor's expensive vacuum).

Narwhal claims it keeps information stored locally as well and encrypts data on the phone app.

Is there an advantage to rooting a vacuum and using Valetudo if the vendor doesn't store information on cloud? Would using the vendor app be a security risk?

Thanks!