When I got a new laptop this summer I researched what chargers were out there, as I was fed up with carrying the normal assortment of cables and chargers. I settled for another GaN charger - the Innergie Powergear 60c[0] which is a very decent size for 60w and not having a mains lead built into it (still very common on non-mac chargers) makes it a lot more compact. I travel a lot, often with more than one laptop, so…
I've got the same one, very pricey, but amazing to travel with compared to the giant macbook charger. It's only 60W but charges almost as fast as the 87W one for 15" macbooks. It's also really nice to be able to charge all my travel gadgets with one small charger, reducing the number of cables and chargers I have to carry. I'm hoping that giant power bricks and those adapters that power via barrel plugs will disappea…
Dell Monitors have a single power cable (for example this P2418D [1]). Many other manufacturers ship giant power bricks because it allows them to make the screen thinner, and nobody sees the power brick under the table. It comes down to customer preference.
1: https://snpi.dell.com/snp/images/products/large/210-AMUH-mvi...