Hubitat's Elevation Home Automation Hub is designed to run your ZigBee and Z-Wave devices 100% locally. This concept of local control means your data is more secure and automations happen more reliably and faster. But they aren't just limited to these "local" devices, you can also integrate your LAN devices via Apps, but these will be dependent on internet connectivity and the manufacturer's servers.
Any major computer upgrade generally requires a full software reinstall too. No so if you heed the advice in the guide to Upgrading a Motherboard without Reinstalling. PCSTATS Tips