With the market declining, it is not wise to gamble with BTC. Especially the transaction fee in using major crypto such as ETH and BTC. That is why gambling platforms with several alternatives such as XRP, DOGE, TRX and other alts is a good attraction for convenience.
I also do not deposit using Bitcoin although it's popular among the gambling sites, I prefer Doge or XRP if there are options to deposit with these coins it's faster cheap and convenience I once deposited Bitcoin but it took 6 hours to confirmed the transactions and I even use a transaction accelerator to help the transaction.
Initially used to think crypto is the best but then realised that it is highly risky to use cryptos because in gambling the results more or less when I play is known as I play for enjoyment and losing streak is higher in my case So eventually I end up losing good coins and later on the price rises of this coins. So I even miss out the money making opportunity if I had hold those coins.