Open Source is a standalone product with its own community and roadmap geared towards small to medium sized businesses. Adobe supports and helps fund Magento, and will continue to do so. There willl always be the two products. Adobe wants the enterprise market for Adobe Commerce and thinks an open source base helps add value by building a bigger community and giving brands a path in And out of the enterprise licensing tier. As far as I can tell, Adobe Commerce and Magento will continue to drift apart and I suspect that eventually Adobe Commerce will shed its legacy PHP core as Adobe moves on to out of process extensibility principles and solutions like Edge Delivery and App Builder.
Doug Hatcher
Enterprise architecture and tech junkie