For anyone who has purchased a Pixel from Visible, is the bootloader locked? This is the case for Pixel phones purchased from Verizon, and I'm curious if the Pixel phones from Visible fall in the same boat.
If you don't know how to check...
First, your Pixel must be SIM unlocked.
Second, if you don't have Developer options as a selection in Settings > System, you have to un-hide it: Go to Settings > About phone > Tap Build number 9(?) times until it says you are now a developer.
Third, go to Settings > System > Developer options, and see if OEM unlocking can be turned ON. If it cannot, then the bootloader is locked.
This may answer your question: