There's a really nice, very low-power, 84x48 B&W LCD screen still widely available for electronics use, a clone of a Nokia 5110 screen - see e.g.:
- https://github.com/akavel/clawtype#clawtype
- mandatory "Bad Apple" vid (not mine): https://youtu.be/v6HidvezKBI
(for the "splash screen" linked above I used font u8g2_font_3x5im_te: https://docs.rs/u8g2-fonts/latest/u8g2_fonts/fonts/struct.u8... and a multilingual u8g2_font_tiny5_t_all: https://docs.rs/u8g2-fonts/latest/u8g2_fonts/fonts/struct.u8...)