Hi. APR is approximately equal to the sum of APY and service fee so APR is undoubtedly higher than APY.

APY and APR are determined by supply-demand relationship and don't have much to do with compounding.

Comprehensive APR includes deposit APY and mining rewards.

Sometimes borrowing amount is a little bit more than deposit amount because the borrowing interests will be added to the liquidity pool and can be borrowed again but this part won't be shown as deposit amount. Put it simply, Borrowing amount = Deposit amount + borrowing interests.

I hope this answers your question.