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The more important aspect to noise is the cleanliness of the power from an inverter, especially given all the electronic boards in things like fridges these days.
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Most modern electronics is designed to operate over a huge range of AC supply voltages - For example, laptop power supplies and "wall warts" are typically rated for 100-240 volts 50/60 Hz.
Varistors and other transient absorbers are now commonly used in their designs, and most homes now have at least a few "surge suppressor" outlet strips or similar present.
If anything, modern electronics is
less susceptible to power quality problems than in earlier eras.
However, some devices (UPS's and furnaces) don't like to see any voltage difference between the ground and neutral wires of the AC power source - they will complain about "wiring errors", or just refuse to operate.
Many portable generators have "unbonded" neutrals, so there is often some voltage present between their ground and neutral wires.
Simple solution: Plug a "neutral bonding plug" into any AC output being powered by the generator, and you instantly have no voltage difference between the ground and neutral wires:
Attached FileKeeps all your appliances happy.