Can it be considered calibration?

[SNH9749]

I checked the forum but couldn't find a related topic, so I'm asking anew.

I was wondering if letting my Macbook Air M2 drain to below 20% (anywhere between 15 - 20%) and then just charging it to full equals to calibrating it (without letting it stay for an hour or so on 100%). That's what I did the past few weeks - every other weekend I let it to discharge without being plugged in, then plug it in, set the charge limit to 100% (Top Up), once it reaches 100% I turn off the Top Up feature and let it to discharge to 80%.

Is it wrong to do it this way? Should I rather wait for it to drain to 15%, plug it in and run the Calibration Mode in AlDente?

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Additionally, I live in an area with frequent electricity blackouts. That is also the reason I never did calibration with AlDente's option - I was afraid something could be damaged as a result of the blackouts. Would something happen if I let my laptop to calibrate but there would be a sudden power outage again, or reduced voltage? We, unfortunately, also get frequent voltage fluctuation.

Many thanks in advance for answers!