WC itself is essentially the same as retail, there may or may not be some hiccups you can get but overall the process is basically like retail.
It’s recommended you have LeakNet installed so the functionality of some entities, especially NPCs can be restored. (Example: combine elite camouflage)
Prop browser is different, harder to navigate, and some entities and entity options (hint nodes hint types for example) don’t really work or are just straight up not there.
That’s all I’ve noticed really, you can play around with a test map to find any quirks I haven’t found.