My last new purchase was Strixhaven mid-2022. It was an impulse buy as the reviews I read didn't sound great. Eventually I gave in as I wanted to know. Turns out I should have trusted the reviews as it didn't provide me with what I had hoped.
My actual last purchase was 2023. I took Xanathar's and Theros to a friend's house and couldn't find them for weeks afterwards. I gave up looking and replaced them. A couple months later I found them in the dumbest place possible: on top of my refrigerator (above my eye level). Gave my old ones to my friends.