Firmware anti-downgrade functionality with eFuses is common across all kinds of consumer devices. The physical evidence is there, if you can find it.

<https://en.wikipedia.org/wiki/EFuse> <https://free60.org/Hardware/Fusesets/#fusesets-07-11> <https://switchbrew.org/wiki/Fuses#Anti-downgrade> <https://arstechnica.com/gadgets/2022/08/google-gives-develop...>