Lasagna is a dish made from dough, filling and sauce. And to enjoy the cooking result, you need to properly prepare the lasagna sheets.
Dry sheets are first boiled to the aldente state, and then transferred to ice water.
If you are making the dough yourself, then just cover the sheets with a towel so that they do not get chapped, it is not necessary to boil them first.
In general, if you add a lot of sauce and broth to the lasagna dish, you can also leave the sheets dry, it is important that they are soft and pliable.