For anyone using this terminal that hates != (and others) being turned into a single character, I have the following to turn off ligatures:
font-feature = -dlig
font-feature = -liga
font-feature = -calt
Note in Ghostty 1.3 we disable discretionary ligatures (I think dlig/calt) by default as recommended by font standards. We still enable liga though that usually contains far less controversial ligatures.
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