There are many e-commerce solutions on the market. Is every open-source? No, and even if they say yes, it may turn out to be a lie. GrandNode is a true open-source platform based on .NET Core and MongoDB. No hidden license fees, no additional licensing conditions. Pure open-source and GPL-3 license.
An open-source platform shouldn't block your development. Forcing the leaving of information about the platform, paid licenses, obtaining paid license keys is an artificial invention that makes the platform paid and complicated.