Following ARROW-13295

Reporter: Neal Richardson / @nealrichardson
Assignee: Nicola Crane / @thisisnic

Related issues:

• [R] Use Arrow engine for summarize() by default (blocks)
• [R] Initial bindings for ExecPlan/ExecNode (relates to)

PRs and other links:

• GitHub Pull Request #10996

_{Note: This issue was originally created as ARROW-13528. Please see the migration documentation for further details.}