Delete All will consolidate all snapshots, regardless of whether they show up in the Snapshot Manager.
However, with 92% disk usage, it's risky to simply start the consolidation. Depending on the configuration you could run out of disk space, and things could become even worse.
To find out if it is save to delete the snapshots, please run ls -lisa from the ESXi host's command line to list the files in the VM's folder. This command will not only show the virtual disk's provisioned space, but also the current physical disk usage. To get the free disk space, also run the df command. Please post the results of both commands as plain text (not as a screenshot) if possible.
To access the hosts CLI remotely, enable the SSH service on the host, and use e.g. putty to connect to it. The VM's folder is /vmfs/volumes/datastore1/Server2019
André