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Late to the discussion (and in no way a knife expert) but someone mentioned Spyderco a few pages back and I am happy with their “UK penknife” model that they designed to be UK EDC legal (though I know that’s not relevant to you). It folds and can easily be opened one handed but it doesn’t technically lock - it just has a pressure bar that gives it a click/notch that you have to overcome. It’s a neat design. Solid, light, plenty sharp enough (for me certainly).
I think you are quite correct. I'm probably overthinking it a bit. That knife is definitely the best knife for the job.
There's always n+1 when it comes to pocket knives.