I'm not sure if it's just my setup, but after installing the Xcode 15 release candidate (Version 15.0 (15A240d)), I can't seem to run my iPad app in the visionOS simulator as I had in the betas. The visionOS "platform" is no longer available to download. Has the process for getting the visionOS simulators changed?

I tried following the setup described in the WWDC21-10105 video, but the autofill suggestion does not appear above the keyboard as shown at 6:17 in video. With the same account, password autofill works. I was able to create a setup button to add a TOTP entry to the account. It bounces me to the Password area of Settings, and I can associate the TOTP with my account. But the verification code auto-suggestion does not appear in my app despite adding the UITextContentType.oneTimeCode attribute to my UITextField. Btw, I was hoping that the setup experience would happen in-app instead of getting bounced to Settings. I'm noticing also that the video has a text input keyboard, instead of numeric, which is odd because the TOTP input is actually restricted to 6 or 8 digits anyway.