The wifi devices are cheaper IME, so I created a IOT VLAN that does not have internet access, nor access to my normal network unless it was initiated from the trusted side.

Ikea home automation is all zigbee, and that stuff is dirt cheap. But if you want something ikea doesn’t sell, like wall switches and thermostats, wifi stuff does tend to be a hair cheaper.

A vlan sounds like the way to go to quarantine devices.

The problem with WiFi IoT is they are power-hungry. A smart plug is obviously not a problem, but a standalone switch - yes