Most of the documentation I see is what federation can do and its pros but what do I miss if I don't federate my server.
You could check the comparison among different levels of integration of ArcGIS Server site and Portal for ArcGIS, i.e., No Server Integration/ with Federated Server (No Hosting Server)/ Federated with Hosting Server.
About using your portal with ArcGIS Server—Portal for ArcGIS (10.5.x) | ArcGIS Enterprise
This is the answer I'm looking for. Thanks!
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