That post really resonated with me. I attempted making my own ESP32-based remote for controlling my media centre while I'm in my kitchen, or generally away from my laptop.

The nature of embedded with interrupts (e.g. from buttons) and trying to mix in MQTT events and nice multi-layered UI made me completely question my programming abilities.

I really wanted to have modals/pop-ups (e.g. to show current volume on change) and it ended up so messy. Not only it is about control flow but about memory too (as the author mentioned). I couldn't just store a stack of "screens" to fall back to.

I'm watching this library recently: https://github.com/peterhinch/micropython-micro-gui

It seems promising to solve many of the common issues that you get, once you move from simple static information display.