Maybe you’ll find a “cheap yellow display” interesting https://github.com/witnessmenow/ESP32-Cheap-Yellow-Display

It has a display, WiFi, Bluetooth and you can write whatever software you want for it.

It’s based on an ESP32, which is a microcontroller not a full computer like a raspberry pi

The "Cheap Yellow Display" was one of my favorite discoveries this year, it's now just my default choice for any micro-controller based project with a small display most of the time.