I wouldn't call the Swedish approach to COVID-19 a “no-lockdowns, no school closures, no masking” strategy.
“As the number of cases surged, some restrictions were imposed. Public events were limited to a maximum of 50 people in March 2020, and eight people in November 2020. Visits to nursing homes were banned and upper secondary schools closed. Primary schools did, however, remain open throughout the pandemic.”
The majority of Swedes also were inclined to follow public health recommendations.
“In a survey by Sweden’s Public Health Agency from the spring of 2020, more than 80% of Swedes reported they had adjusted their behaviour, for example by practising social distancing, avoiding crowds and public transport, and working from home. Aggregated mobile data confirmed that Swedes reduced their travel and mobility during the pandemic.”
Finally, the public health authorities largely failed in their goal to protect the elderly.
https://www.preventionweb.net/news/did-swedens-controversial-covid-strategy-pay-many-ways-it-did-it-let-elderly-down
And from your link ...
"The commission did, however, state that the no-lockdown strategy was fundamentally reasonable, and that the state should never interfere with the rights and freedoms of its citizens more than absolutely necessary. The commission also supported the decision to keep primary schools open."
"By comparison, the Corona Commission in Norway, one of the few countries in Europe with lower excess mortality than Sweden, concluded that although the handling of the pandemic in Norway was generally good, children were hit hard by lockdowns and the authorities did not adequately protect them."