The various Acts say the records of electronic voting must be retained and mad available to owners on request.
From the Regulations (sl-2016-501 (nsw.gov.au)_
41 Electronic voting records
(1)For the purposes of section 180 (1) (j) of the Act, records relating to electronic voting
for motions for resolutions by an owners corporation must be retained by an owners
corporation.
(2)For the purposes of section 180 (2) of the Act, the period for which an owners
corporation is required to retain voting papers under section 180 (1) (g) of the Act or
records referred to in subclause (1) is 13 months, if the voting papers or records relate
to secret ballots, unless the papers relate to the appointment of a strata renewal
committee or other decisions in connection with Part 10 of the Strata Schemes
Development Act 2015.
42 Inspection of records
For the purposes of section 182 (3) (k) of the Act, the owners corporation must make
available for inspection the accounting records and other records relating to the strata
scheme that are kept by the strata managing agent.
You’ll find the relevant sections of the Act here: https://legislation.nsw.gov.au/view/html/inforce/current/act-2015-050#pt.10-div.2