Not only since the approval of the ETF will immediately jump, of course there will be a process where bitcoin can rise again, I only know where the news reported that
Vanguard blocked its clients from buying bitcoin ETFs so this might slightly trigger the price of bitcoin down.
I think now is not the time, the same thing with halving will not immediately rally, I feel this is a good opportunity to buy more bitcoin because this way in my opinion should be utilized when the price is high it will think buy too high.
So the impact will be later when it has been running for a long time.