SPAM / SCAM CALLS COMING FROM MY LANDLINE NUMBER

Nothing.  There's nothing you can do.  Numbers can be spoofed.  Recent legislation has added some requirements to help prevent spoofing, but they don't apply to every phone company, so spoofing continues.

Calmly explain that you didn't make the call, you cannot control that others may spoof your number, any more than she can prevent spoofing of her number, and how would she like the someone yelling at her with equal justification, i.e. none.

Unfortunately spoofing Caller ID is all too common. New legislation is helping mitigate this with further protections, but there is only so much it can do.

If this lady calls back, politely let her know your number was spoofed so you are about as much a victim as she is since this annoys you both. Suggest she just block your number.

Though that lady calling back the number to report is a bit silly. You report to the police not whom you believe to be the crook. Makes me wonder if she is try a scam all her own.

In addition to what's been stated the new rules that were put in place only apply to digital phone service and cell service.  It doesn't apply to traditional landlines, which it appears the person complaining to the OP has, otherwise it would be flagged as possible spam.