After the 2025 budget, does it imply that, unofficially, a monthly income of 1 lakh is now being considered as middle class?

Is the reasoning behind lowering the tax rate focused on increasing the spending power of the middle class? Additionally, if more people switch to the new tax regime, will the incentive to invest for tax savings—as seen in the old regime—decrease, potentially leading to a low investment habit and high spending habit?