You can work with Ikea. I wouldn’t say it is basically cheaper. For example, if you have a long row. With manufacturer X, 2 cabinets (2x 1.20m) are enough for me, with IKEA I need 3 (3x 0.8m). For very tall people, for example, I wouldn’t recommend IKEA either. A 25 cm plinth is not so sexy. It is very individual. Kitchen studios that advertise with % can be avoided directly.
In the end, the decisive factor is the final price. I see no advantage in knowing the exact prices per cabinet. I also don’t know how much the door and the rearview mirror cost in a car. It doesn’t matter.