I think BNB will be fine. but I don't know about BUSD. but I'm also pretty sure Paxos will handle it pretty well. because even after this FUD we can see BUSD not dropping too far. and this is different from last year's UST or Luna case. However, we must still be prepared for the worst. so for a while I also converted my BUSD to USDT. Being careful is much better than being sorry in the end.