The best way to answer this is with ”it depends”. Keep in mind that you are building up to 4 separate meshes.
Mesh 1: ~900mhz zwave - Connects to and controlled by smartthings hub
Mesh 2: ~2.4 ghz zigbee - Connects to and controlled by smartthings hub
Mesh 3: ~2.4ghz WiFi - Connects to TP-link mesh, can potentially be controlled by smartthings hub
Mesh 4: ~5ghz WiFi - Connects to TP-link mesh, can potentially be controlled by smartthings hub
To make sure mesh 2 & 3 don’t interfere w/ each other:
To find zigbee, zwave, wifi and Ethernet devices smartthings supports: