Pre-purchase question: Can sensor activity logging be turned off

I want a security system that can be truly turned off when not active. This means all or even select motion/entry sensors and even cameras do not look/sense/record/log anything until I explicitly arm the system. In short “Off” should really mean “Off”.

Does the Eufy system/app allow this control? I can find nothing in the available documentation or in discussions on the forum.

Thanks for any assistance.