A literature review is not just a summary of the literature. Instead it is a synthesis that draws together the literature in a new way, often to answer a question. It needs an organising structure that threads through it and one of the tools that may help you find this organising structure is a matrix.
These two articles provide brief introduction to matrices for literature reviewing.
Sally Jensen (2013) A Synthesis Matrix as a Tool for Analyzing and Synthesizing Prior Research, Academic Coaching & Writing Dissertation Doctor Blog, https://www.academiccoachingandwriting.org/dissertation-doctor/dissertation-doctor-blog/iii-a-synthesis-matrix-as-a-tool-for-analyzing-and-synthesizing-prior-resea
Laura Ingram, James Hussey, Michelle Tigani, and Mary Hemmelgarn (2006) Writing A Literature Review and Using a Synthesis Matrix, NC State University Writing and Speaking Tutorial Service