>>3
It's happening.

Check it: https://0x0.st/X-wh.png

:root {
--imegi: url("https://0x0.st/X-tf.avif");
--size: 25em;
--x: 20vh;
--y: 20vh;
}

body#threadpage:before {
position: fixed;
shape-outside: inset(50%); /* takes it out of the flow */
float: right;
width: var(--size);
height: var(--size);
right: 0;
bottom: 0;
margin-right: var(--x);
margin-bottom: var(--y);

z-index: -1;

background-image: var(--imegi);
opacity: 0.5;
background-repeat: no-repeat;
background-position: bottom right;
background-size: contain;

content: '';
}