In QLD you don’t need to change the bylaws very often (we never have done so in 13 years) because the big difference is that any changes that the owner makes to the lot just requires EC or OC approval with a normal motion (no bylaw required). That is because the Act puts the onus on the lot owner to maintain any changes they make (whether approved or not).
From our Strata Act:
(3) Despite anything in subsections (1) and (2)—
(a) the body corporate is not responsible for maintaining fixtures or fittings installed by the occupier of a lot if they were installed for the occupier’s own benefit; and
b) the owner of the lot is responsible for maintaining utility infrastructure, including utility infrastructure situated on common property, in good order and condition. (so long as it only services that lot)
Also the boundary for responsibility is the mid point of the boundary wall, ceiling and floor, so everything within the lot is owners problem.