Was this insulting and a backhanded compliment?

I kinda get compliments on my appearance frequently. I often have people that come to my register and tell me. It’s usually women of all ages or teenagers and I work as a cashier. Men don’t rlly tell me but it’s not hard to tell when a man finds me attractive.
Today I had this nice lady who didn’t come to my register but I guess saw me in the store and came to my register while I was with a customer and was like “you probably don’t get told this often enough but you are beautiful”. I said thank you but I felt like her saying I probably don’t get told often was kind of a jab lol. Was that a backhanded compliment?
Was this insulting and a backhanded compliment?
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