Development progresses with AxisAndOhs.
The next version 1.73 will have more features for the Desktop/Web FIP gauges that make it possible to have a simple PFD and NAV display on your phone/tablet or on a separate monitor. Those instruments are intended to be used with MSFS, they may not work 100% in the other sims. The gauges will be available as free downloads on the axisandohs.weebly.com site.
In my case, I bought a 13" TFT screen that is connected to the internal Intel GPU, which frees up my 2080ti to only power the sim. Likewise, since the instruments are a feature of AAO, I can set my cockpit view to show only the windows (and reduce the in-sim refresh rate). Undocking sim-internal windows usually has a large impact on FPS, and by avoiding this I find performance to be very good. YMMV.
The version is feature complete and is undergoing testing currently. The release should happen next week.