It depends on what your needs are. If you only need better sound every now and then and the size doesn't bother you, then yeah - it definitely saves you the hassle of dealing with separate speakers and cables. You pack a small soundbar and you're good to go.
But honestly: a lot of these USB-C models in the 80 - 150 euro price range are pretty mediocre. For that money you often get better quality with a smaller portable speaker that also has Bluetooth - that way you're more flexible because you can use it with your phone too. The USB-C solution is mainly interesting for people who really want to travel minimalist and switch between different devices a lot.
From my experience: try it out first to see if you'd actually use the soundbar regularly or if you'd just end up lugging it around. If you work several hours a day in different places and have audio meetings, it could be worth it. Otherwise I'd save the money and invest in a decent little battery-powered speaker instead.