Not sure if you need internet to play, but yes to the usb. Thats how I got the first update when I purchased the ps4. Thats for firmware updates. I don't htink you can usb game updates themselves. Could be wrong on that though. Could be. That was the first, and so far last, time I had to update that way. I barely remember why.
PS4 Pro no longer stays connected to Internet. : PS4 PS4 Pro no longer stays connected to Internet. Question Yesterday one of our PS4 Pro’s was in rest mode and it was unplugged without being properly shut down. Amazon.com: Call of Duty: Black Ops 4 - PlayStation 4 Oct 12, 2018 Amazon.com: ps4
PS4 Pro no longer stays connected to Internet. : PS4
Jun 22, 2020 · Ways to Connect PS4 to Internet & Playstation Network. As we said above, we will show you the best and perfect way to connect PS4 to the internet and the PlayStation network. You can check all the details on how to connect and start using it online. Let’s check the process to do it now. Wired Connection (LAN) to Connect PS4 to Internet
Set Up Internet Connection | PlayStation®4 User's Guide
PS4 Connection Error Codes - PlayStation