If you have dense breasts, I would insist on something more than a mammogram. Depending on what state you’re in, there are mandates for insurance companies to cover ultrasound and/or MRI for folks with very dense breast. You can find your state here:
https://densebreast-info.org/legislative-information/state-legislation-map/
I live in a state where I could’ve been getting ultrasound or MRI since 2018. Had I known, I would’ve insisted upon it and perhaps would’ve found my ILC earlier. My yearly mammograms missed it.