No. This includes 4G and 5G devices. 3G devices will just stop working when the 3G network is shut down and don’t need to be blocked.

My phone is set to LTE only in my modem config, all of my calls are via VoLTE, my phone will still be blocked.

If you’re from the US, it isn’t. The Woolworth part of the company was closed and they focussed on sporting goods, whatever is left of the company is now called Foot Locker.

“Woolworths supermarkets in Australia and New Zealand are operated by Australia’s largest retail company, Woolworths Group, a separate company with no historical links to the F. W. Woolworth Company or Foot Locker, Inc.”

Copied from Wikipedia.