What is the difference between develop vs. feature branch type?

For the git workflow, as presented in [1]:

• feature: All features / new functions / major refactorings are done in feature branches, which branch off and are merged back into the develop branch (usually after some kind of peer review).
• release: When enough features have accumulated or the next release time frame comes near, a new release branch is branched off develop. It is solely dedicated to testing/bug fixing and any cleanup necessary (e.g. changing some path names, different default values for instrumentation etc.).
• master Once the QA is satisfied with the quality, the release branch is merged into master (and also back to develop). This is then what is shipped/used by the customers.
• hotfix If a major problem is found after release, the fix is developed in a hotfix branch, that is branched off the master. Those are the only branches that will ever branch off of master.
• Note: Any commit in master is a merge commit (either from a release or a hotfix branch) and represents a new release that is shipped to the customer.

Please be aware that this model is mainly meant for a) big software projects that follow b) classic release versioning and c) have a separate QA team. Many popular repositories on GitHub follow a simpler model.