Version 2022-08-01 seems much better in respect of the REST API. We still have one issue with OAuth2, which I believe has been reported and assigned to Erik. During the OAuth2 flow, there's a recommended parameter called "state", described as:
state (recommended)
The state parameter is used by the application to store request-specific data and/or prevent CSRF attacks. The authorization server must return the unmodified state value back to the application.
If the redirect URL is sending this state parameter, it may require it to be sent back from the authorisation server. Currently, the Standard ID authorisation server doesn't support this and sends nothing back, resulting in a failure. As the state parameter is becoming more commonly used, it's important that this functionality is added quickly.