yes it is a huge bug since the nothing OS 3 release. Even the latest updates that were supposed to fix the network stabiltiy problem did not solve this issue. Nothing has been unresponsive on this front.
The phone takes a long time to register on 5g network (either falls back to 4g or no network). Before anyone says it is a network provider problem, it is not. All other phones with the same sim provide constant, stable and immediate connection and stays on 5g. Nothing after 3.0 almost always fails.
Your best bet is to report through settings>system>feedback. The community observers are unhelpful in this regard and neither escalate the matter internally or say standard response templates which is infuriating. This is a known widespread issue.
