Same has been happening in Melbourne, Australia. The state government has basically steamrolled the boomers and allowed highrise construction next to existing train stations. Despite having huge population growth, rents are some of the most affordable in the country.
One of the things I like about the reporting in this Austin article, is they break down by building class.
In Melbourne I've never found a good source for this, only general averages; and my suspicions are that we just build shitboxes and claim the rent is lower on average, capturing something like shrinkflation rather than affordability.