As happened five years ago after the halving, usually cryptocurrency prices on exchanges will experience a price correction first and after that the altcoin season will return to its bull run. Meanwhile for Ethereum it will be even better when the ETF accepts Ethereum to enter its trading list .
Bitcoin's influence is felt on all altcoins, including ethereum. When bitcoin goes down, then ethereum also follows. It reached $4K to get close to its ATH but fell, even though today it moved up. Overall during this week, there was a decline of 13.7% and this, is still quite tall. With the movement of bitcoin it is hoped that ethereum will also follow and hopefully this goes well.
Indeed, what you say is true, that after the halving period, a correction will initially occur, but now it has not yet entered the halving period.
I think, the same as Bitcoin, ETFs will also be affected and, hopefully, the launch in May will not be delayed, so that it coincides with the halving.