In this scenario are you buying XMR with Fiat and then swapping that XMR for BTC?
If you acquire BTC from a P2P platform like Bisq or Robosats, you can put that BTC through
https://ashigaru.rs/To get improved spending privacy for your BTC.
The BTC acquired from swapping XMR has no guarantees on it's chain history. You are acquiring the chain history of the BTC seller. You will need to use
https://ashigaru.rs/after getting the BTC from the swap to have good spending privacy.