Definitely buy the dip, halving time is always best time for smart traders. There is rapid volatility during this time. Everyone should buy as much BTC as possible before US markets open on Monday and Blackrock and other ETFs buy Bitcoin from Grayscale for cheap. Price will rise anyways after halving so risk is minimal.
Buy, without a doubt, but do it with care because if the market tends to be more volatile during these times, the volatility can drag it in any direction and it isn't guaranteed to just go up from that. The dip can always get extended if there is a major sell-off from both retail and industrial investors because one would surely think of taking profit if they see the market declining to a point where their profits will reduce by a lot.
So those who are buying the dip should make sure that they are not investing all their liquid assets in one go because that can be a mistake in case the price of Bitcoin goes lower than the expected areas and then there would be nothing left to buy more because lower means more assets for the same price.