The DeviceSwarm is often a vehicle for control and eliminating privacy because devices are tethered to clouds and more loyal to the people who made them than their users
What can we do instead?
There's the Pine Phone : https://www.pine64.org/pinephone/, a proper Linux phone.
And Precursor is a developer device to prototype your devices. https://www.crowdsupply.com/sutajio-kosagi/precursor