We have a peer-reviewed study in a prestigious scientific journal claiming otherwise,
The article appears to mainly be reporting statistics on the frequency of occurence and reported effects. These are interesting, because such data had not been previously gathered. But they don't provide any evidence that ndes are caused by other than neural activity.
There is one anecdotal report of an OBE. Such anecdotal reports are poor evidence.
The evidence strongly suggests that NDEs can occur when the brain is not active because there are observed examples of this occuring.
I don't see any basis for that conclusion.