Know that if you use a lightning network to open a channel and later close the channel, the coin has been mixed already.
A few points I haven't understood:
Do you mean that the process of Submarine Swaps does increase bitcoin privacy, similar to those 3 methods mentioned in the other thread ?
When I send BTC from exchange to Muun wallet, Muun wallet will open a channel. But then does this channel close itself automatedly after the transaction is done ?
Additionally, there're also 2 ways to send BTC from exchange to Muun wallet, are there any differences ?
1. Send BTC directly to Muun wallet
2. Send BTC via exchange's Lightning network (Many exchanges now support it) to Muun wallet