There is a new control board which is under study, it also comes with a microSD slot in the front, so no, it is not a safe method.
There will be an announcement about AmLogic, you should keep them. Only the aml has the usb port so its still easy to recognize from the outside. And only the bbb has no port at all, its also easy to recognize from the outside.
If it has a microSD slot, then hopefully it has a sticker with Zynq/Xilinx/7007 on top. Else you need to remove the metal cover and see for yourself.
Thanks again!
Regarding the new control board with SD card at the front which is not a Zynq board: How new is that board? Is a used miner that was initially bought in mid-2022 certainly a Zynq board miner if it has the SD slot at the front? Or when is the cutoff date?