Be chill guys I am here now and let me explain.
I have to ask...
How two random individuals use the same wallet for signature payment?

They would either have to:
- be in very close proximity to one another, or
- share login credentials for a HD wallet service like blockchain.com.
Either way, it doesn't make sense that someone wouldn't just create their own wallet.
That being said, I can think of some scenarios in which coins from different users end up in the same transaction.
Just out of a desire to be more educated on the subject, I'd like to understand how that could happen... In this case the 2 addresses are indeed part of the same HD wallet -- it seems highly likely they are both owned by the same person.