The autos stretch , whether they go large or squat and bush out. Autos can tolerate
Some light training BUT that bend is way harsh. It will stunt your plant . All autos are Plug and play meaning pop them and let them go. I LST the mid branch areas sometimes. I dont FIM or TOP either , some do.
Its PRESET life cycle doesnt have the time to repair itself. You might have screwed the pooch on these. At 4 weeks you should start seeing preflowers so it is critical not to screw with its limited VEG time ( 2-3 weeks )