I feel like there are too many DEXs and that's creating liquidity problems.

What's the advantage of LeoDex compared to using Hive-Engine?

On Hive-engine it's 0.75% to deposit BTC, which you can trade for Hive. To withdraw the Hive costs you another 0.75%. So 1.5% in total.

A fee of $3.88 on a $100 deposit via LeoDex is 3.88%