Key differences between sfdx force:source:push and sfdx force:source:deploy:
sfdx force:source:pushdeploys changes from a local project directory, whilesfdx force:source:deploydeploys changes from a source format.sfdx force:source:pushis optimized for development workflows and is useful for pushing code and metadata changes from your local project to your org, whilesfdx force:source:deployis more flexible and can be used to deploy changes from a variety of sources, including third-party apps and other orgs.sfdx force:source:pushis typically faster and more efficient thansfdx force:source:deploy, as it only deploys changes that have been made since the last push.sfdx force:source:deploy, on the other hand, deploys the entire set of metadata specified in the deployment package.sfdx force:source:pushis better suited for development environments, whilesfdx force:source:deployis better suited for production environments where changes are typically made less frequently.sfdx force:source:pushrequires that you have a local project directory and version control system set up, whilesfdx force:source:deploycan be used without a local project directory.
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