You will need a Zigbee Hub for sure, but it doesn't need to be Philips Hue hub.
Folks have used ConBee II or Sonoff Zigbee USB dongle to replace Hue hub.
I have used Sonoff Zigbeen to replace Ikea hub, bot haven't got around to replacing Hue hub just yet. It's on my list :-)
I have used Sonoff Zigbeen to replace Ikea hub, bot haven't got around to replacing Hue hub just yet. It's on my list :-)