Views Table Rowspan defines new views display format name "Table Rowspan". This display will group rows in table and merge row has same value to one row use property rowspan.
Could you configure your view to use overridden output to show fields within a details element? Sure, but that kind of layout in configuration can be less intuitive to maintain over time.
Provides a field output formatter that can be configured to hide output that goes beyond a configurable height, with options for how the user can expand the field to see the full content.