I can understand the desire for a garage (bicycles etc.) and that it should be somewhat wider than 3 m external dimension. It is simply more usable that way.
, Yvonne, it’s a pity that your program crashed, I would have liked to see the idea. Like you, I see the kitchen facing the garden .. so here within the house boundaries of the ground floor

Kitchen simply in 3 blocks with plenty of storage space.
The tall cabinet row with a 45 cm pantry cabinet, oven/dishwasher at secondary height (approx. 120 cm, therefore countertop space for KVA etc.), then fridge/freezer combo.
Cooking block on the right wall with exhaust to the bottom of the plan and a nice large preparation/sink island.
Dining area with 100x200 cm table and bench, that creates movement space in front of the sliding door to the terrace.
Living room then private ... in the passage area the "library".
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And for that the upper floor
I would rather place the parents' bed against the outer wall, then both sides have nice space for nightstands.
350 cm sliding door wardrobe and about 350 cm dresser should provide sufficient storage space.
Bathroom .. toilet above toilet on the ground floor, privacy wall = shower partition. Sink at the bottom of the plan, e.g. vessel sink, next to it free space where the washing machine can stand underneath.
Left side of the plan then space for a not so deep (approx. 25 cm) bathroom cabinet or possibly a towel radiator.
.. was it actually clarified whether the roof of the garage can still be used as a terrace?
And, would windows basically be possible on the right side in the upper floor or not .. because of the terrace option on the garage?