So, I just need to tell you that over the years, both on the app and the PC client, the UI has gotten worse and worse, and it's usually because there are changes to designs that are made just for the sake of it. Like the newest update that changed the PC client. Instead of having a search bar constantly visible and easily accessible, it's now a button you have to press to get into the search section, and it's just such a weird and unnecessary design that clutters up the sidebar more than it already was. Similar thing happened to the android app a few years back. Instead of having the search bar readily available by pulling down as far as possible in any playlist, liked songs and artist page, now you have to tap the tree dots and the 'Find in <insert list name>' option. This not only breaks the flow of using the app, but is also very user unfriendly...
I'm not sure who's in charge of these designs, but they are not good, I must say. Year after year, update after update, the app just gets more annoying to use and cluttery, and there has to be an end to it. There's something called "don't fix what's not broken". A few years back, can't remember the exact version, you had a GREAT design, both on the app and the client. Yet, you still changed it, like just because you wanted a "fresh" look. I just noticed that you changed the android app too, so we'll see how much I like that. I cannot be the only one with these opinions, surely... And hopefully someone with a bit more reference photos or details can give you a better idea of what the problems are, cause sadly I don't have the brain capacity to remember such details.
Anyway, please just try not to change things and fix things that aren't broken. I would love to see the more intuitive search system back instead of having to go to the "three dot" menu all the time... Guess that's my biggest problem.
UPDATE: The new android app, I gotta say, I'm happily surprised with the search button now being easily available. Very good design choice. Have barely used the app so far, so can't yet say that I like it completely, but looking promising.