Specifically, I'm not a "designer", but I regularly end up making/changing UIs (mobile apps, web apps/pages, etc). When it comes to design, it really matters who the target audience is.
If you're creating a UI for "mass market", you have to design to a lowest-common-denominator that balances what your average user expects, generally, from UI/UX, and the more you ask them to "invest", the worse you're going to do. On the other hand, if you're making a tool for a B2B (business-to-business) product, you have more freedom to set baseline expectations of what the end user needs to be able to do and understand. You can also expose more powerful options, etc. You can sometimes end up going in very different directions. Even error handling and logging can sometimes be handled differently, depending on the context.