I am going to buy a phone soon and I would rather buy an Android than an iPhone. However, I do not want to run any Google software on the phone, and I am planning on installing one of the custom ROMs LineageOS or /e/ (which is based on LineageOS).
How high is the risk of bricking the phone by installing one of these custom ROMs? Just to be clear, I do not plan on rooting the phone and I will install the phone on a supported device, probably the OnePlus 5.
fastboot oem unlock
the device needs to support unlocking. If the manual is specific for a certain device this usually indicates that this device can be unlocked. – Robert Mar 14 '19 at 19:03