This requirement still only applies to developers who want to release apps using a personal account created after November 13, 2023.
Before releasing an Android app on the Google Play Store, developers are required to test their app with a number of different users. This became a requirement late last year when Google implemented a rule that forced developers to test their apps with a minimum of 20 people over a 14 day period. A lot of indie app developers complained about this rule as they felt that it was too much of a burden. Fortunately, Google has heard these complaints and has quietly relaxed the rule a bit.