Recommended Internet Systems & Cellular Plans

Trying to follow along and make best use of what I have. The goal is to maximize my internet options via both cell and Wi-Fi.

I have a Peplink Max BR1 LTE and just ordered a Mobility 22G antenna. Do I still need a Groove or similar to boost the Wi-Fi signals, or will just 22G do? If I do need a Groove, can I use the 22G antenna for the Groove? It looks like it has 2 Wi-Fi wires and each have a different signal range. Not sure which to use if it’s needed.