You are right, that the SAMD21 has 256k flash and 32k sram.
The ESP32C3 has 4mb flash and 400k sram, I believe.
Not surprisingly, I wasn’t able to compile Seeed’s basic demo of the Round Display due to insufficient RAM on the
SAMD21 XIAO board.
But, a different demo (tft_espi-base-dial) only uses TFT_eSPI library, and it fit in RAM no problem.
However, it still did not work!
I believe I followed all the configurations suggested in Seeed’s Getting Started guide:
-R