good thing is, you can program the layout yourself. you can even put the parentheses in homerow and access it by holding one of the thumb keys and tap a key in homerow.
Most enthusiast split keebs run on QMK or ZMK which allow you to customize the layout as you'd like including features such as layers, one-shot mods (press shift, next key you press is shift+key), macros, and key combos (press jk to emulate shift like some people do in vim).
Without that, it is a broken mess filled to the brim with showstopping UX failures.