find my device would be more difficult to implement without a decently sized company backing it but a lock out function wouldn’t be that difficult. it just needs to be implemented into the os itself rather than rely on the trustworthiness of a third party dev.
what is proprietary about a locked bootloader? the only android fork i can recommend is GrapheneOS. you relock the bootloader on that as well.
Oh, I though you were talking about lock out and findmydevice
find my device would be more difficult to implement without a decently sized company backing it but a lock out function wouldn’t be that difficult. it just needs to be implemented into the os itself rather than rely on the trustworthiness of a third party dev.
I use a app on F-droid called findmydevice. It can use a custom server but I just opted to SMS via a password