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This[1] is the typical satellites thruster:

https://www.satnow.com/products/thrusters/space-electric-thr...

It has a thrust of ~20 milli Newtons.

Power that up for 10 seconds on a satellite weighing 500 kg, and you will move an extra 0.4 millimeters per second.

So how exactly is precise maneuvering hard?

GEO satellites typically don't use hall effect thrusters for much. Primary propulsion for large GEO satellites is typically a hypergolic system. Ion thrusters, if present, are typically a station keeping tool.

For example, the satellite bus used by EchoStar-7, which is the satellite in question here (https://en.m.wikipedia.org/wiki/Lockheed_Martin_A2100) uses Hydrazine and NTO for primary propulsion, with hydrazine monoprop for atittude control, and the monoprop thrusters and ion thrusters for station keeping.

While the new version of that bus has the option for all-electric propulsion, it really isn't clear how popular that option has actually been. There aren't really many details about it.

> This[1] is the typical satellites thruster:

Define "typical" because it's not being used on any geostationary satellites.

> Power that up for 10 seconds on a satellite weighing 500 kg

500kg? Hilarious. These satellites are the size of a bus and their weights are measured in tons.

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