Critical data used for Anti-Cheat detection:
Device information like brand, model, firmware, root status
IMU / orientation sensor data (gyro, accelerometer, compass)
on Android: details about every visible/used in fix GPS sattelite
so when you...
played on Nox/BS: you yelled "emulator" everywhere + 3. GPS spoofed on iOS: sensor data not matching walking GPS spoofed on Android: 2. + sat details were empty/zero used IV checkers / 3rd party API tools with your account: static/zero values for sensors+gps, different, not unique device API usage before u6 was cracked: you sent no signature at all.
(if you only spoofed yourself to a static location with iOS, not teleporting and having the position set before opening the app, you are probably fine, because aside of your ip, data resembled a phone resting on a park bench or smth, which got picked up only for catching an encounter)