I understand bitcoin transactions can have multiple inputs/outputs but I'm intrigued on how payment providers confirm the receipt of payment in a 3rd party wallet?
I understand that once you are inside a wallet, you have a different perspective of the transaction and therefore you can provide a clear view to the user about that specific transaction - as you know which addresses belong to that wallet.
But, is there a way to guess, or get closer to an aggregation of the value of the transaction that doesn't belong to a wallet you own? So we could show it clearly to the user: How much was sent, from where to and how much. Ok, there may be multiple outputs, which we have to show, but we can aggregate them and show the sum of the transaction. In the end of the day, once you send a transaction id to a recipient (as proof of payment), they want to see your wallet, their wallet, and the total amount which was paid. Not 15 inputs and another 29 outputs, confirmations, and all that stuff.
I get it, all of that info is very important, including number of confirmation, etc, yadayadayada.
But I'm trying to put together an explorer where it would be easier to show (to a Bitcoin normal user) a transaction in a simple way (without all those inputs and outputs), but something simpler as From, To, Value, Fee, and that's it.
I understand that, by design, the blockchain doesn't work that way. In any case, I would like to ask the community here if you have any clue or idea on how to achieve this or closer to this

I'm open to suggestions and ideas on this, cheers!
Thanks in advance,