A few things of interest that I found out about Taiwan is that, first they had the means of production to offer their citizens surgical masks which are effective in controlling the spread and kept the price of those masks very low (priced at NT$ 5 each, equivalent to USD 0.17 each)
www.ncbi.nlm.nih.gov
Secondly, they also did not mandate masks in grades K-12 on the basis that students and teachers in those settings come in contact with the same people each day.
www.taiwannews.com.tw
Third, I believe they didn’t mandate lockdowns until a surge in May 2021.