I wish they would have one IDE for everything - what IntelliJ used to be.
Its subtle stuff, but changing the way project management is handled and tasks are run for example between CLion, Idea and PyCharm made me use the individual IDEs even if I could technically install the language plugins in just one
I have an all products license so it's not a blocker but I wish they would just make ultimate, truly ultimate.
I just want to automatically share my transferable preferences between IDEs
I personally prefer the segmented nature since it lets me more easily customize per language functionality.