I haven’t kept up with who’s vulnerable to Celebrite but if it’d be really disappointing if Samsung’s newest models are still vulnerable in BFU mode. When it comes to security in general, Samsung does seem to be a distant third best option if Pixels and iPhones aren’t an option, but I’ve heard rumours that GrapheneOS is in talks with an unnamed manufacturer who (if interested in supporting GrapheneOS) would probably need to step up their security and perhaps bump Samsung down the hierarchy.