Survivor Benefits (when spouse starts early)

Do others have experience with this question - are survivor benefits limited to the amount actually drawn by deceased spouse, or is the “82.5% rule” below a real thing?

Most commonly, I see reference to…. 100% spouse survivor benefits based on what spouse was actually drawing, whether that was early or not.

Info below indicates that my wife’s survivor benefits could actually be higher than my own paid benefit if I start early (the reference to 82.5% of PIA, which I understand to be the amount I could draw at full retirement age). Using the calculator seems to confirm this.

https://www.mygovexpert.com/surviving-spouse-benefit-calculator

FROM THE PAGE OF THE CALCULATOR:

RIB-LIM (Retirement Insurance Benefit Limit): A rule that can limit survivor benefits if the deceased spouse received reduced retirement benefits. (From a sample calculation: RIB-LIM is the higher of 82.5% of the PIA or the spouse's actual monthly benefit amount).

Background: My spouse will not be eligible for SS retirement on her own record due to lack of qualifying work history. I’m considering the timing to start my own benefits and survivor benefit planning is an important part of that. I’m currently still working and not 62 yet. I think I’m clear on spouse benefits, this is only about survivor benefits.