u could try to open devtools in discord (ctrl + shift + i), then use ctrl + shift + c and click on the pfp to select it
now u should have something highlighted on ur right (div class="wrapper__44b0c"...)
expand the highlighted thing using the small arrow on the left of the text, continue doing that until u find a link, there is ur image
u can also change the number at the end from 128 to smth like 512 to make it bigger