I am experiencing random Wi-Fi and Bluetooth disconnections while using iOS 27. Both Wi-Fi and Bluetooth disconnect unexpectedly, then reconnect automatically a few seconds later. I have seen many similar reports on Reddit, so this does not seem to be an isolated issue.
I have already submitted a report through Feedback Assistant with the feedback ID FB23121586. I hope this issue can be fixed soon, because it is really stressful when playing online games on my iPhone and worrying that the connection might suddenly drop. :(