The book Team Topologies discusses Platform Engineering. They consider four core team types, and the platform team is one of those. Some more information about those types can be found here: https://teamtopologies.com/key-concepts-content/what-are-the...
I can definitely recommend this book for a (new) perspective on how platform teams fit into organizations.
This is a typical challenge for platform teams. Because they are responsible for the underlying foundation on which applications are build, a mistake can easily impact all those applications.
An important realization in my opinion is that a platform team is just another development team. They should consider their platform as a product and the developers as their customers. To minimize any downtime they should use the typical mechanisms that developers are also using: automated tests, pair programming, rolling out changes to test environments first, etc.
I can definitely recommend this book for a (new) perspective on how platform teams fit into organizations.