Corporate apartments raise their rents in lockstep with the market, whereas at least some randos will leave it stable for some years in a row.

I had that experience with the last house we rented before we bought.

We were quiet, predictable, don't-rock-the-boat tenants, and the rando owner mentioned that they valued that enough that raising rents wasn't worth the potential risk of new tenants who might cause them more hassle.

I live in an apartment owned by a larger company, the rent raises really slowly in my experience, Like 3% per year. I have been at my unit for 15 years now, never had any problem or regret anything about it.

Also, if you're a marginal renter, e.g. can't make 3x the rent from a W2 and don't have a co-signer, credit issues, etc. then the randos are more likely to work with you.

My sister was a sex worker for a while when she was younger, and trying to do things like rent was difficult because her income fluctuated a lot (always enough to cover rent, but she'd save during good months for poor ones) and she was technically self-employed. Or if you're on any form of disability, or if you had a medical issue that trashed your credit, etc. People getting out of prison, and so on.

If you stray from the happy path, woe unto you when dealing with large companies.