TLDR: Found porn on wife's phone, lots of DP, but in the past said she doesn't want to be a HW. Should I bring it up again to see if she's interested?

Background: wife knows of my kink, she is a hard no. We've roleplayed a couple of times but nothing major. Our sex is very vanilla, and infrequent. I often think about her being a HW, so much that I don't last too long when we have sex. She likes that part and says it shows her I'm still attracted to her. We're very good looking in our 40s but look like early 30s and I'm 7", and we've been together for 20 years.

I recently let my wife know I want more sex she was a bit taken aback but said she'll comply, she was happy with the way things are and didn't think there was a problem. The sex has picked up a bit but I haven't mentioned anything about HW-ing in a while. I'm taking a break from talking about it with her and it's been a few months or more.

I've been working a lot lately and have to leave the house. Today she gave me her phone to check on an order made and I saw some porn on her phone, basically what she watched one of the days I was in the office. It was a lot of getting picked up on the street, or outdoor/car fucking, and always was DP interracial. The girls look like her...body type, hair, height etc.

Is this a sign that I should bring it back up? I've heard that the porn women watch doesn't relate to what they want to do, but this is too much on the nose with some recent activity. For Valentine's day I gave her a coupon book which had a car/public sex coupon. I knew she would like that but when I gave it to her she played it cool, even though she told me she'd like that.

I know if I say, "hey, found ur porn" she'll get embarrassed but I'd like to see if she's having a change of heart. Should I bring it up again? Should I pay it no mind as the porn she's watching has nothing to do with her actual wants?

How should I make the best of it?