I've heard squeaking from an extruder that had little bits and shards of previous filament that was getting stuck during loading and unloading of filament rolls. You might try opening it up and seeing if there's anything stuck in the channel or grinding against a gear.
Get a real extruder and not literally the cheapest thing that Creality could conceive to put in the Ender 3. The worst extruder in metal instead of plastic is still the worst extruder, it will just be the worst extruder for longer.
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