Yup will make no difference to instant coffee. It will taste awful whatever you do to it.
I’m with you to a degree, but some people must like instant.
I recall buying some individual coffee filters, they had coffee secreted in the porous bottom of what looks like a plastic cup.
This “cup” sits on the rim of a proper cup, and you pour water in and it slowly seeps through the coffee into the real cup.
The saleswoman said, “Remember, water boiling, coffee spoiling, let the water just cool a bit.”