The impact of the halving will be much smaller than the previous ones, most of the volatility has already disappeared. Don't expect to increase the price with percentages (%) above 3 digits as happened in the past.
In the long term, bitcoin will stabilize its price, it is still cheap in this price region and we can still buy bitcoin with some freedom, it is a very good time to accumulate a little more.
It's not that the impact of the halving is decreasing or getting smaller, it's that bitcoin is getting bigger so it's only natural that it gives smaller and smaller returns. Any asset will have a limit to its growth and at some point it will reach its maximum and saturation. Similar to gold, it also has a very good growth period but will gradually stabilize and bitcoin is no exception. That is also the reason why many people are gradually switching to investing in Altcoins with the hope of earning higher profits but with more risk.