From the FAQ (https://puri.sm/shop/librem-5/):
Can I run Android apps?
Not day 1. However there is a lot of interest in including a isolation layer that will be able to power Android applications natively. We have added that as a stretch goal to quantify the effort.
Can the Librem 5 phone run Android?
Very likely, even though we will not expend resources to test this.
Will the Librem 5 be able to run Anbox or Shashlik?
We will test the capabilities of powering Anbox or Shashlik to allow users the ability to run Android applications within PureOS on the Librem 5, but our long-term goal is to utilize native applications that adhere to our strict philosophy. Enterprise clients or users who require Android applications may choose to to run a Android applications within an isolation container, so this is the reason for testing this type of configuration. We have a stretch goal to help with this developmental effort to have Android apps run in isolation.
As Linageos is Android…