[416chad]

No such luck on Android, you need to use tasker or similar. Really a nuisance but not a deal breaker. It would be dreamy to set up the client to not use specific SSIDs.

[forbiddenlake]

I want to point out that the intents on the official Wireguard Android app are not exposed, so I, not being rooted, can't use Tasker to automate it.

However, there are other Android apps that implement Wireguard that do expose their intents. I use Viscerion with Tasker quite happily.