Really nicely done! It's always surprising to me how often computer graphics isn't "one weird trick" and more like "5 layered tricks." Doing it with cross-browser compat is an additional challenge.
Do you have a sense of which aspects are the most resource-intensive? Naively I would guess it's the backdrop-filter.
Do you have a sense of which aspects are the most resource-intensive? Naively I would guess it's the backdrop-filter.