With 200% scaling you now only have the screen real-estate of a 1080p screen.
At 4k I can have 4x 1080p windows open and visible at the same time.
At 1080p at most I can have two windows open side by side. Some programs will fit into a quandrant at 1080p, but others wont. For example, at 1080p you can have 4x task managers open, but spotify/discord won't fit.
Also once in a blue-moon you'll find some software won't scale at all, or has issues scaling. If you only have a 21" screen then you have this tiny microscopic text you have to try to read.
With 200% scaling you now only have the screen real-estate of a 1080p screen. At 4k I can have 4x 1080p windows open and visible at the same time.
At 1080p at most I can have two windows open side by side. Some programs will fit into a quandrant at 1080p, but others wont. For example, at 1080p you can have 4x task managers open, but spotify/discord won't fit.
Also once in a blue-moon you'll find some software won't scale at all, or has issues scaling. If you only have a 21" screen then you have this tiny microscopic text you have to try to read.