If you noticed, immediately after the halving, the mining fee was high and it still is during weekdays. So, even after halving of the block rewards, there is still enough incentive to keep the miners happy in form of transaction fees and if there are miners who closed their farms, I don't think they are many.
The mining fee was high due to users who are willing to pay more during that time, it might be because of P2P trades happening in anticipation of the halving. And based from the news I have seen a lot of miners have already closed down their operations that's why when we look at the charts you will see some temporary drops in Bitcoin's total hash rate but that thing quickly recovers as these old farms are quickly absorbed by bigger mining farms. But during this time when we see some drops in hashrate we can't really connect if there is a correlation between it and Bitcoin's price since Bitcoin was surprisingly doing good in terms of price movement even if there were higher fees and some minor drop in hash rate.