In that case, you’ll only be marginally better off than you would be using your phone as a hotspot. No signal is no signal. The best booster out there can’t boost what isn’t there. I’m with @JOG if you want a viable alternative, then you have to look at a different system.I want reliable connectivity for working remotely.
So good 4g connection and wifi in the van.
My work is largely MS Teams and secure connection into the office.