The general idea of the beginning of the Big Bang is a fast inflation model, which is a kind of hot soup of energy/matter that explodes, expands and wherein 'magically' forces appear and particles start to form.
That is a fine and dandy but let's philosophise a bit deeper into the matter, and look at what the options and necessities are of that first stage/state:
Starting with a red hot blob of energy, this is where we already have our first acting force that should bound the blob together preventing it from spreading out (exploding).
The second thing we need to look at is the expansion for which we need space. Without space to move into there is no expansion possible, think of a sliding puzzle.
So on the other hand we could also say that no acting force is needed because there was in the beginning no space to move into.
Chicken or the egg?
¯\_(ツ)_/¯
One thing in nature that resembles this situation is the breaking of tempered glass.
In the clip above it was the hand of a Goddess that ignited the effect, but there are other possibilities such as small defaults in the structure or heat, as explained in this clip:
The same goes for how Chalk cracks:
An other example is the dried out soil of a riverbed where heat evaporates the water and bakes the soil, breaking bonds and cracks appears.
An inverse example is the expansion of bread, like in a croissant (crescent: growing, increasing, developing) and the formation of a Voronoi pattern structure.
TL;DR imo it is more logic that the beginning of the BB was just the appearance of cracks / foam-structure (Voronoi) in an existing tight substance; instead of matter 'loosely flying around', like in typical explosions, and starting to bond.
Seen from this perspective the formation of elementary particles is a mere self-organisational process of the volumes (bubbles), where knotted rhythmic pathways appear, a dynamic network, and out of which all the forces can self-emerge based on basic fluid-dynamic rules.
This dynamic foam (Voronoi) moves somewhat like Worley noise,
but regulated by currents that run through the edges that make the volumes contract or expand by heating them up or cooling them down.
As a result of these self-organising currents, closed circuit loops can emerge, and rhythmic volumetric patterns can popup within the foam.
These rhythmic fluctuations can align and form a dynamic string/wave that fold on itself and turn into a knot: Spiralling Torus.
A Spiralling Torus can be seen as an Elementary-particle acting on 'the next level'.
Here it generates the Four Fundamental Forces of Nature:
The global propeller-motion of the particle generates Spin, and produces vortex-like repulsion and suction, ...
... the internal propeller-motion of the ring, that produces a current through the centre, also produces repulsion and attraction, together they give rise the Strong and Weak forces (I, II). The linear trust gives it the polar Magnetic force (III).
(S) in =(O)=> out (N)
While spiralling forward a Torus compresses the cells of the dynamic foam and generates a Gravitational force (IV). The more Toruses in one area the stronger the compression of Space.
