Vinyl installation direction and cutting-off problem

No, no, Lumpi_LE is basically right. You just break down 2 boards at the beginning

Example:
1st row:
60 - 152 - 152 - 100 ... 52 remain
2nd row:
90 - 152 - 152 - 128 - 70 ... 82 remain
3rd row you start with the remainder from row 1
52 - 152 - 152 - 108 ... 44 remain
4th row you start with the remainder from row 2
82 - 152 - 152 - 78 ... 74 remain
etc.

You just break down 2 boards at the beginning

Exactly, starting twice is the trick - now I was also a bit confused.

Thank you, kbt09, that is a good idea to use the rest in the row after next, so start twice
... and just basically... am I proceeding correctly here with the laying direction? Or should I rotate by 90° after all? Which would also be beneficial for stability, as the main running paths would then be along the planks and not across.

So I think, especially with click flooring, it probably doesn't matter. Regarding start/end pieces, you can also accept a bit more waste and thereby bring in even more variety. So if you have a leftover piece of 100cm, you could also cut off about 20cm from it.

OK, but purely visually, laying it lengthwise or crosswise does make a difference. There is on the one hand the recommendation from the manufacturers to lay the covering lengthwise to the light incidence. On the other hand, there is the advice to lay long, narrow rooms crosswise because of the effect. What if these two requirements contradict each other?

The kitchen is not long and narrow, the corridors are, so laying it crosswise fits there.