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Target AFR - 2011 Mazda 2/Demio

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I don't mean to make a new thread forum for something so mediocre, but in terms of target AFR, would I just want to target 0.90 Lambda with a stoichiometric AFR of 14.7 in a naturally aspirated car? (My 2011 Mazda 2, 1.5L engine, no modified sensors/injectors, but my exhaust is modified after my downstream O2 sensor)

I'm only curious, because at some point I would like to reflash my own car, and sometimes the way it's spoken in these modules, I'm a little unsure if I should just assume the suggested values hahaha.

Hi Eric different afr for different load here is an example