Scrum's lack of first principles has it be immutable. The bottom line is that Scrum makes several assumptions that may not be true for your team. These include:

A cross-functional team exists, or can be readily created. While cross-functional teams are often the best solution, they often aren't a pragmatic solution.
The team can plan ahead to create the sprint plan. Not all teams know what's coming their way.
The team can work autonomously. Teams are rarely truly autonomous.
The people have the Scrum values of Commitment, Focus, Openness, Respect, and Courage. These are great, of course. But, as Jerry Sternin suggests "It is easier to act yourself into a new way of thinking, than it is to think yourself into a new way of acting." Amplio doesn't presume these are present when starting, but helps yo uget them.
People will understand the intentions of the Scrum Guide. Take a look on LinkedIn and you'll see its guidance is unclear.
People can increase their skils as needed to work in an Agile manner. Not all people are self-learning. This is one reason people are enrolled in Amplio Learning Journies.
That if you start with Scrum you'll learn how to go beyond it if you need to. Unfortunately, Scrum doesn't provide any insights on how to do this.