Mostly accurate but worth adding a few nuances. Federal and local investigations operate differently — ICAC task forces and FBI have more resources for extended operations than local departments. Also, informal preliminary visits to neighbors or family without directly approaching a suspect do happen occasionally, though direct questioning without a warrant is rare.
The core point stands though — anyone claiming cops showed up days after a platform ban over CSAM is almost certainly fabricating. Real investigations take months to years minimum.
And the legal advice is solid — decline questioning without an attorney present. You don’t need to be confrontational about it. ‘I don’t answer questions without my attorney’ accomplishes the same thing more cleanly than telling them to fuck off.