How to know what VMs have snapshot.

If you use Veeam Backup and Replication or Veritas Netbackup non-authorized snapshot can prevent backup/replica tasks (long term snapshots as backups is one of the most common mistakes, as cause of poor performance and as Vmware datastore low free space reason and so on ). So it’s important to know quickly what VMs have snapshot and delete/merge them.

Set-ExecutionPolicy RemoteSigned
get-vm | get-snapshot | fl Description, Created, VM

if you want to delete/merge existing snapshots for all VMs:

Get-VM | Get-Snapshot | Remove-Snapshot -confirm:$false