no wait i know the wallet can have many addresses. my question is the receiver see the address it came from. so his visibility stop at that address. but still it depends if person A only received once 10 btc ... and used only one address than person B who was sent lets say 0.1 btc can see the UTXO in the explorer.

so my point here is, should someone splits his btc into many internal addresses on the same wallet? or split his entire amount into many wallets?