If you have some jumpers and maybe a breadboard, you could try wiring the display directly to the pi GPIOs. With this specific display you have to make sure all the pins are properly connected tho (specifically all the gnd pins)
Then download and install the Luma oled packages for testing.
I could send you a test one-liner I’ve used to check my displays
FWIW - if the display failed, contact the seller. Mouser replaced one for me after a bit of troubleshooting discussion.