Reason for changing everything and still being suspended
This is one of the reasons why changing devices is not enough in account integrity bans. Instagram first verifies if the device is known. If it's a recognized device, it bypasses the list check entirely. If not, it analyzes behavior to determine 'which account this resembles.' Matching the list at this point provides a score boost. That's why accounts don't close at first, but they can be closed after weeks.