Dont think so. Any example? When the first cases occurred the forum didnt understand and didnt discuss/ask the security patch level dates. I only remeber cases when older security patch level dates were flashed and the bootloader locked.
And the issue causing bricks seem to be
Another topic explaining it
571/1500
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[quote=“hirnsushi, post:16, topic:95258”]
The problem is not so much that the value is reset, that is even deliberately intended. After installing the factory images, OEM unlocking should be set to off, as in the delivery state, this is part of the Android security model.
The problematic part is that the rollback index is not reset, which is what ultimately leads to the brick.
Normally a new installation should practically start from scratch, but the FP4 bootloader does not forget the previous security patch level.