Most brands allow relocking bootloader. But after that you with be only able to use stock rom. Pixel lets you lock the bootloader with a different signature, so in this example you are basically able to lock it to only boot grapheneos and nothing else.
Most brands allow relocking bootloader. But after that you with be only able to use stock rom. Pixel lets you lock the bootloader with a different signature, so in this example you are basically able to lock it to only boot grapheneos and nothing else.