Begrudging more senior employees for lacking sympathy for younger employees who feel left out by remote work is not the same as begrudging them for working remote. Regardless, I would say it's a fair hypothesis that the vast majority of senior employees now would have reacted negatively to working remotely out of college. My experience and my peers has been that it's a significant negative to working relationships or gaining a mentor which is crucial for younger people. I see no reason why this would not be a universal experience. Studies back this up even before remote work was a thing. One I recall of the top of the dome was that it was actually cheaper over a lifetime in many occupations to go out to eat for lunch with coworkers than packing a lunch because just going out to eat with work peers had an immensely positive impact on promotions and networking. If just going out to lunch does that you can easily extrapolate to what effect not even working in the same place physically has.

I cannot find the exact study that concluded this but here's a recent one making a similar case. I know this isn't the one I've recalled since I read it back in high school. This one speaks to the benefits to the employee and employer.

https://www.businessnewsdaily.com/8638-employees-eat-togethe...