I hate that I have to open the layer box, close the layer box, open the layer box, close the layer box. Can it just stay open like some of the other palettes?
It does exist as a paid addon (link here by bimdots), but I do agree Graphisoft should integrate it natively since new users find it weird that layers are controlled through a dialog box and not a palette.
Most design software nowadays has a always open layers panel (everything from adobe/ figma/ rhino,etc), so coming to Archicad and finding it's different is indeed confusing and different from the norm.
It could be argued that you don't really need it if you use a good template and have everything set up, but honestly it really should be a user choice so I definitely support it.