The only "BLE tracking tags" reported to use Find My are Apple devices, and if you can attach an Apple device to something your target owns, there are many mean

The only "BLE tracking tags" reported to use Find My are Apple devices, and if you can attach an Apple device to something your target owns, there are many means you can use other than Find My to track them. I mean, if you can accomplish step 2, you don't need Apple at all.