Hi, in case this is helpful to anyone, I had some success with the 2.9" Tri-Color FeatherWing.
I just posted a recipe here: Recipe: ESPHome + Adafruit Feather ESP32-S2 + ThinkInk E-paper display + Battery monitor
the tl;dr, ePaper wise, is that the Adafruit board seemed to work fine when I set the right pins and used:
display:
- platform: waveshare_epaper
model: 2.90in-bV3