Magento has more catalog flexibility than Shopify out of the box, which is what scares teams off the move.
Configurable products
Map to Shopify variants. Attribute sets become product options + metafields.
B2B and tier pricing
Use Shopify B2B (Plus plan) for native company accounts and price lists. Standard Shopify needs an app like B2B Wholesale Club.
Multi-store consolidation
Magento storeviews → Shopify Markets with locale + currency routing.