GrapheneOS is partnered with Motorola Mobility which is Lenovo's mobile division. Motorola Solutions is an entirely different company from the one working with GrapheneOS. These companies aren't part of the same business and don't have the same ownership.
In 2011, Motorola was split into Motorola Mobility and Motorola Solutions. Google acquired Motorola Mobility in 2012 and sold it to Lenovo in 2014. Motorola Mobility is the company selling smartphones and tablets.
Motorola Solutions is a separate company. It's the continuation of the government contract side of Motorola selling radios, cameras and now drones. Both share the same brand for historical reasons but are entirely different things.
People regularly get the companies mixed up due to both using the Motorola brand. It's Motorola Solutions making surveillance cameras, not Motorola Mobility. We're only working with Motorola Mobility.
We're working with Motorola Mobility on upcoming devices meeting all of our requirements for updates and security protections. These devices will provide official support for GrapheneOS and we'll be provided with everything we need to provide proper updates. The first device with GrapheneOS support will be a very high end flagship but it will expand further from there.