I used to take a dedicated camera while traveling, but that hasn't been the case in the last five years. Phone cameras have gotten so good that I just don't see the need to bring a mirrorless camera along, and that point was proven during a recent vacation to Thailand. I took the Find X9 Ultra along, and my wife got her Vivo X300 Ultra, and between these two devices, we managed to take plenty of great photos. There's also the added versatility of external lenses, and the 200mm lens on the X300 Ultra in particular is a delight to use.
All of this is to say is that I don't quite see the value in lugging another camera along. However, the same isn't true of instant cameras; I have a few older Instax cameras in the house, and they're fun to use, and are a novel way to take photos when guests show up.