Sternwake is the 'goto' guy for detailed information, there are several others here who can also help.
Highdesertranger, Trebor English, John61CT, many others. They all have real-world experience.
Generally most of us recommend buying the 12 volt versions, if possible and practical. A 12v fridge is easy, but 12v microwaves are expensive, and not always reliable. Buying a $60 microwave and $2000 worth of solar panels, inverter, and batteries to run it is not un-heard of.
Many of us just use an inexpensive generator to run the microwave, and scale back on the solar array.
Many boondockers choose to leave the microwave at home or give it away and relearn how to cook and reheat on a stove!
If you will be hooking up to shorepower often, you can buy inverter/chargers that do two functions and simplify the wiring and you can still use solar panels for power when off-grid.
You are probably looking at a 1500 watt sine wave inverter and or inverter/charger, and 4 batteries, and at minimum, 300 watts of solar, (panels, solar controller, and all the cables and fuses)
Narrow your focus as you get closer to the build, with help from this forum.