This might be true for Binance.us (seperate, smaller entity), I don't know but definitely isn't true for actual Binance. A few chains have occasional to frequent ~1 day deposit/withdrawal pauses but waiting a day isn't the same as it being extremely hard (and even in those cases you can convert to something else and withdraw that).
Interesting, did this change recently? I remember cashing out almost 6 figures EUR around the peak last year without any problem. Since then I stayed away from the crypto market.