Don’t have to have doubts towards the 2cc 2 stroke because they’ve been deployed successfully in the field by literally every one in that industry for north of 50 years.

Most chainsaws are like 40cc or above, nearly 20x larger displacement than a 2cc.

I don't think I've ever actually seen a 2cc chain saw. It would be like pocket sized, suitable for cutting pencils. 2cc motors are used in hobby rc cars.