On project for the web, what is the best way to manage resource planning? On project desktop i would have all resource names added per task, and if there was a conflict it would flag to me, but on project for the web i don't think things like this exist.
As you have already discovered, Project for the Web lacks most of the features found in the Microsoft Project desktop application. In a nutshell, there are no real resource management capabilities for a single project that are built in Project for the Web. If you have the Power BI report pack installed for Project for the Web, you may be able to visualize resource overallocations across the projects in your organization. Hope this helps.