How to properly make my SWA logout from a custom identity provider?

I saw this similar issue and I think this is a bug.
https://github.com/Azure/static-web-apps/issues/529

But I would like to understand better if this is something that will be fixed or do we really need to make the "reverse flow" to make it work. (Logout from IdP redirecting to app logout url).

**Describe the bug**
The app does not completely logs out when we visit the /logout url with a custom identity provider configured.

**To Reproduce**
Steps to reproduce the behavior:
1. Setup a custom identity provider
2. Login into the app
3. Then logout
4. The SWA app will be logged out but not the custom provider.
5. If you visit any url that requires authentication the app logs you in without requesting for credentials again.

**Expected behavior**
Logout from the SWA and from the custom identity provider.