How does the feature team of a game development pipeline implement and embody the scrum principles and framework？
Create Done Increments of immediately usable quality each and every Sprint. Frame and meet a Sprint Goal that addresses a significant risk or uncertainty. Use each Sprint as a learning experiment to find out what is truly needed.
Do you want to start with Scrum, or are you already doing Scrum, but it is not working?
Assuming you would like to start Scrum new. Start with reading the 2020 Scrim Guide (https://scrumguides.org/) It is 13 pages, and holds a lot of information.
A starting point is a team and a Product Backlog. Create a Product Backlog and order the items according to importance. Ideally the Product Owner owns this. At the start of an iteration or sprint, the team pulls items from the Product Backlog to work on. Work as a team, not as individuals and favour team decisions oppose of hierarchical management.
Is the Scrum framework actually needed? I have worked game development and I am not sure the framework would have been useful. The work done for gaming is complex but because of the long development times for such things, it doesn't necessarily get benefit from the short adaptive loops in the Scrum framework. Now it could be that the games I worked on (mostly online massively multiplayer role play games) is not the same as building a mobile "match the items" game. But it still seems like a stretch to me for this.
I am not saying it can't be done. The advice given by @Ian and @Pierre is good. Before you try to introduce the framework, you have to understand it well. Based on the two posts you made here on the same day, minutes apart, it seems like you are trying to find a way to introduce the Scrum framework into niche markets. If you truly understand the framework and it's benefits, you would be the best to make the decisions on how to do it by working with each engagement as unique, just as you would with a commercial software client. There is not a template that can be used for this.