Would it be possible to have the option to report the total funds received at the address, regardless of withdrawals?
If I understand you correctly you already have that amount clearly visible in mempool.space explorer.
There is total received in the bottom, confirmed balance on top, and pending amount on the right side.
Here is example of one random address:

Yes, that part will already be available.
What isn't, and will be more difficult, is for him to deduct the amount he received from his own address.
Sure. I will work on this until the end of the week!
I remembered that you asked for that a long time ago and I forgot about it.
Easily doable

Had you already suggested this idea? I didn't remember.
But no rush.
