Indeed, in the local news I could hear the Polish gov is preparing hotels and other accommodation places for people who will flee away from the conflict. I don't know the details but watch out, because there might many hotel owners, whose will want more money than they would usually take for a stay.

Edit: If they would decide leaving their country my very early tip is to download Google Translate with the all locales they know + country where they are. While you can find many people who speak Ukrainian/Russian in central EU countries, it is a priceless help for any foreigner. I had occasion to be a participant of a talk between people, who were writing the phrases on the screen to communicate. Since that moment, I have downloaded Ukrainian locale pack for offline use in Google Translate.

so does Romania