A big PlayStation 5 system update will arrive tomorrow, Sony has announced, and finally let you move games onto external USB storage.
As expected, you won't be able to play PS5 games from that external USB storage, but you can shuffle them back and forth. This is a far better solution than having to delete and redownload them again whenever Call of Duty needs an update and you run out of storage capacity.
You can't download games straight to a USB drive, so you will still need space before shuffling them over. Also, games stored on USB drives will not automatically be updated until transferred back to your SSD.