Whilst I'm currently waiting over the "usual processing times" for my 887 (submitted 30 Sept 2020)
I'm looking over things that I may of missed, the only form I don't have submitted it the 956 & 956A.... https://immi.homeaffairs.gov.au/form-listing/forms/956.pdf
Now some time ago in 2020 I asked about this and was told on the forum, since I'm not using a migration agent I don't need to fill it out.. still the case?
Cheers