Universe maybe started not from a singularity (of infinite density?) nor a quantum fluctuation (how it can happen where even spacetime does not exists?)
but instead started from some kind of cosmic egg that contained three different kinds of energy that do not interact (and destroy each other):
Dark Energy, Dark Matter, Normal (positive) Energy.
And Dark Energy created (and still creating) spacetime, Dark Matter created the cosmic web, Normal (positive) Energy created matter, stars, galaxies which coalesced on the cosmic web.