When you are an active trader, the broker will match the CUSIP to determine whether a wash sale occurred.
If you trade with two brokers, this can't happen if you trade the same security, so you are responsible to make the adjustments for disallowed loss.
Obviously, this is best avoided. (or maybe not if you want to cheat).
"- Buy NVDA 190 Calls $800"
Boom. If that's within +/- thirty days, you've got a disallowed loss.
"replacement securities" is a misnomer and not used by IRS. It is identical security ( as you pointed out) .
NVDA stock has a different CUSIP so that 2 shares has no effect.
