@joseb as @marcg pointed out, it depends.
If the unmanaged switch is connected to a managed switch access port configured to pass only traffic for one specific vlan the unmanaged switch should continue to pass that traffic down to it’s connected nodes and any traffic coming back from those nodes via the unmanaged switch will get tagged by the managed switch on the way to wherever they’re going.
This should be true whether or not the unmanaged switch strips tags or not. But you’ll only get traffic to and from the one vlan you configured at the managed switch port for all of your unmanaged switch. No different than plugging your computer into the managed switch port.
@marcg has a point: managed switches can be had brand new, cheaply. I use Netgear gs308ep managed switches and they work well. And I don’t have to worry about the distinction. I send a trunk line down to my access switches and then set the ports up as access ports for the specific vlans I want for each endpoint or a trunk for a Wi-Fi access point.