Update - there are good news and bad news.
Bad news is that the damage was more extensive than I thought. The water damage is 3,4 m2 and it will have to be dried and the floor has to bestripped and redone. The good news however is that they can limit the new flooring to the smaller room, which is 8m2. The old guy who came to check and map the damage told me to not lose sleep over this, he said he has done similar jobs a lot both this summer and the last. He'll write a report and send it to me, and I can then send it to the insurance company. He was really nice about it. And even if I have to pay for the drying and the new floor out of pocket, the cost shouldn't be astronomical. And the guy said that insurance companies always try to wiggle out of paying at first so I should just chill out until he's done the report and then I can try to get them to pay. Of course, I need to empty the room and take down the curtains and everything until the job is done but that's perfectly doable. My living room is gonna look a bit cluttered for a while but all in all this isn't the end of the world.
Also, the microwave oven I ordered in March finally arrived and it's the prettiest, fiercest little home appliance I have ever seen. I´m glad I dished out an extra 40 euros to get a red one, it's really cute. I just need to breathe in and out and keep my wits about me.