I know i’m very late on this, but I did find the apple vis post on IOS 18.1.1and other updates that people need to make.
Unfortunately, moving apps with Voiceover is not working according to the post and has been confirmed to the JRN.
This was documented in the linked post that I’m linking to here.
Let me make it clear that not everyone will experience the bug, so please proceed at your own risk.
Read the blog post to determine if upgrading is the right choice for you.