Looks like the Online Safety Bill is dead https://techcrunch.com/2023/09/06/osb-encryption-scanning-feasibility/
Discussion
Seems I was wrong. About another article:
https://news.ycombinator.com/item?id=37416203
"All the govt said was "we'll only force scanning when it's "technically feasible" to do so" - i.e. when someone believes the CSAM scanning quality is high enough beyond some given threshold."