I have a similar story; undergrad at a public state school and grad at a private Ivy. My experience at the Ivy was eye-openi. The loudest [1] Ivy undergrads came from private elementary/high schools and had a very dismissive view of the students who matriculated from public elementary/high schools. Academic breaks were used for luxury travel.

[1] "loudest" in the sense that they made sure that other students knew where they came from.

At the risk of coming off as cantankerous, I think that this has worsened with the increasing immediacy of social sharing. Due to both the ephemerality and deluge of content that expedite a post's expiration date, there's even more pressure to stay on that FOMO-generating content treadmill. There were groups of students who kept partying throughout the pandemic and bragging about how "magical" their weekend wine tours and date nights were; any time I've been in a comparable situation, it's been kids acting and recording each other on their phones, feeding the simulation machine.

Allow me to share the class divide even within a place like Harvard Business School, dubbed "Section X"

https://www.nytimes.com/2013/09/10/education/harvard-busines...