I am not discouraging you to hold long term in hotbit, but be very careful investing in exchanges.
My confidence in terms of earning interest via savings is on binance only, even if they have relatively low APR.
Remember, once the exchange is attacked or something, would be hard to get your money back.
But with binance, if anything happens, they have insurance called SAFU to protect their customers.
I visited their socials, and it doesn't look professionally managed, in my opinion. I don't trust most exchanges. Some of them are just used by projects to list their coins to gain attention and a positive reputation, they pay them a considerable amount of funds as payment. It's also alarming how many exchanges were hacked, or they use it as an excuse to hide the fact that they run away with the money.