Agreed. #1 advice from anyone is "invest in real estate because it's the only thing they're not making any more of." So even if a huge corporation owns nothing and just rents every inch of office space, most likely their investment strategy includes commercial real estate.
Anecdotally, I happen to know of some people who threw a ton of money into local commercial buildings pre-pandemic, because that was the way the investor-class herd was going. These are people that I consider very wealthy, but are small potatoes compared to most of these big corporate CEO types. Now that they own all these buildings, they're squawking because they can't rent them.