I love the filter… On the Playlist view when you type something it and then backspace it out the filter box disappears. This means you have to go back to your mouse to activate it. All other filter boxes stay open in this case.
Filter playlist, say type in “ECM” as I have some ECM playlists.
Leaving that text where it is in the filter, navigate somewhere else in Roon. For me, that is hitting the currently playing song or going into a playlist. I was moving around a lot because I was tagging certain Tidal ECM albums with “MQA”.
use the Roon back button navigation to get back to the Playlists where the filter is still active with “ECM” typed in. When I delete that the filter box goes away.