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- interesting

- i was under the opinion that we may have enough libraries in c++ for just about everything from load assets to handling physics to handling graphics , networking, rendering etc

- isn't that the case given 20+ yrs of development on C++

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Just plugging in a networking library isn't going to get you a what you need for a CS like game. The players here expect perfection.

You will also need to figure out client/server side prediction, rollback/reconciliation, lag compensation and make this perform well.

And then you need an anticheat and skill-based matchmaking and ...

what you suggest by gluing libs together is more like a framework. Engines have cohesive asset systems that tie into engine and gameplay systems, networking has to work with the gameplay layer, etc. Also, tooling is like 90% of what makes an engine worth using. You need asset importers, level editors, scripting solutions (often visual these days), data editors

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