To get healthy Strawberry plants they requires strong roots, to get this the plant need to direct most of its energy toward root growth. During first year of planting don't let the plant fruit.
All these flowers need to go, and it's best to clip them off at earlier stage that this.
Runners like these above also has to go.
So flower buds has to be clipped.
All clipped so that the plants can concentrate getting good roots.
Runners clip to prevent new plants, I reserve two original plants to produce runners for propagating. Those plants are the base stock for my Strawberry plants.
I will let the plants grow for this next few months towards January or March then I'll trim all leaves to get new growth.