It’s safe ,and I could confirm that . I play Monsterhunter , and turn on “60fps” cheats , so far I have played for 2 years . Don’t worry.
But it’s just safe for Room Based game , like diablo/ monster hunter
I'm using emuiibo 0.5 release ( I compiled it myself) , and copied ACNH Amiibos to SD card , I could read that emuiibo covert the raw bin file , but the amiibo couldnt show in the game ...