ᐅ Initial IKEA Kitchen Planning and Some Questions (Third-Party Appliances)

Hello everyone,

we are planning an open U-shaped kitchen for our new apartment.

We generally want to use non-IKEA appliances.

Here are a few questions:

1) Which fridge/freezer combination would fit into the 220cm (87 inch) high cabinet? Do you have any recommendations? And how do the door fronts work? As far as I understand, the upper door would open both the fridge/freezer section and the upper storage space of the tall cabinet. Is that correct? So if I want to open only the upper compartment, would the 240cm (94 inch) version be the only option?

2) The oven should be built high into the tall cabinet. From what I have read, fitting ovens into IKEA cabinets is usually less problematic. We are planning a Neff or Siemens oven here.

3) For the induction cooktop (80cm (31.5 inch), Siemens), we plan to place it centered between two 80cm (31.5 inch) cabinets. Has anyone done this before? Does it work? I assume the side panels need to be cut out a bit for this? What does the area below the cooktop look like? We want base cabinets with drawers there. Is there enough clearance for the induction cooktop?

The extractor hood will be a chimney-style hood with head clearance.
The sink will be a quartz composite one from Schock, and the dishwasher will be placed underneath. Is there anything to consider here, besides that the dishwasher needs to be an XXL model with a Vario hinge?

4) Lighting. We saw the following solution at IKEA, which we really like. However, I do not understand how the flush-mounted solution is achieved. Normally, the lights are mounted on top of the base cabinet. Do you have any idea what exactly is needed for this?

Have I missed any important points we should consider?

Thank you in advance!