I mean, you must have a good reason to remove a practical and ergonomical feature like the Filter and replace it with a quasi-hidden bummer now called Find In Playlist.
Before it only took a swipe-down to be absle to find a song within a Spotify playlist. Now it takes at least two taps and a swipte down to do that.
W H Y ?
As long as you have a reason, I'm fine with it. Otherwise you should fire your UX. I mean you can excuse yourselves with "we are looking to deprecate the Filter feature in Spotify lists in the future". But what you did is certainly not USER ORIENTED.