Agreed it isn't simple, but I'm just saying tracking is effective. Tracking is in fact the single most effective way of ensuring a deficit. But yes it isnt easy and you can absolutely be successful in achieving a deficit without tracking. A food scale and weighing and understanding portion sizes for a couple weeks can be a lifetime level learning that you can apply though even if you don't stick to it - as most won't.

Much like you can save money without strict budgeting. I'm saying tracking is objectively "true" contrary to your statement. That doesn't make it easy though. Some find the other suggestions difficult. It is important to find what works for you.