Compared with tools we had 10 years ago or more, UIs have indeed improved significantly.
No criticism of the OP here, but this got me thinking about one of my mortal enemies. The UI within SQL Server Management Studio. For the last decade of upgrades, I've really wondered how that development team leaves the office everyday thinking they are doing a good day's work. There are so many blatantly apparent rough edges to the UI for SSMS, I can't believe they think it's as good as they can make it.
In order to avoid tldr, I'll just give a single example. Look at the tabbing for each database connection window. The tabs are labelled "servername.database" but are limited to a small number of characters regardless of how many tabs are open. Here's an example where there are only two open tabs:
The first reason the labelling is fundamentally broken is that the database name is chopped off in an unnecessary abbreviation. The tab could stretch out to display the whole thing! It's not scrunched in with a bunch of other tabs. There's plenty of room there.
The second reason this is broken is that the database name is the thing you actually need to see more than the server name. In the majority of use case scenarios, the user is connected to multiple databases on the same server. When switching tabs, you need to be able to locate the one for the database you're looking for within your current connections. Sure, there's that pulldown menu on the left, but that's a much further mouse drag than the tabs are from your focal point.
So, if you're ever looking for an example of a developer interface that doesn't get a proper update, look no further than SQL Server Management Studio. It's hardly changed in over a decade of releases.