Source-available
You can read the code, but the license forbids something open source by definition has to allow.
An umbrella term for licenses that publish the code while restricting what you may do with it — most often offering it as a cloud service, or using it commercially in competition with the author. Microsoft ran an early version under the name Shared Source in 2001. The modern wave arrived in 2018, when the Commons Clause and the SSPL both appeared as a response to cloud providers selling other people's databases as a service.
The difference from open source is legal, not technical: the OSI definition forbids discriminating against fields of endeavour, which is precisely what these licenses do. Companies that switch tend to describe it as an adjustment. The community tends to describe it with a fork.