Sweden is does not come close, no.

Try harder means do more work. What is communism?

Engels wrote:

Communism is the doctrine of the conditions of the liberation of the proletariat.

In this way, Communism is the theory and the practice of bringing about conditions of the liberation of the proletariat. In this way, all communism is successful in so far as it improves the conditions of proletariat against their oppressors and fails in so far as they stop doing that.

The USSR, therefore, was wildly successful and large scale. It ended serfdom entirely. It defeated the Nazis. It ended the centuries-long 4-7 year cycle of famine. It created the second-best-fed society in the world. And then it failed. It fell to revisionism, elevating a liberal class of would be property owners. It created the conditions for the oligarchs, and then it dismantled itself in favor of liberal capitalism and private enrichment.

China, therefore, is wildly successful and large scale. It has so far lifted 800 million people out of abject poverty. Grandmothers alive today in China saw their lives go from rice farming at a dollar a month to driving electric cars that respond to hand signals. They ended the centuries-long 2-4 year famine cycle. The ended the serf system. They have developed industrial capacity to such a degree that their massive country has a domestic purchasing power for its citizens equivalent to the greatest empire in the world, with far less inequality

Vietnam, therefore, is wildly successful. It fought against its colonizers (the French) and then successfully fought off the greatest military in the history of the world. Then it rebuilt its destroyed country and fed its people.

North Korea, therefore, is wildly successful. After the world's most powerful military destroyed everything in their country, every single structure, poisoned their land, and made them all to live in caves to avoid the constant napalm strafing, they worked together and rebuilt everything by hand without any ability to trade with the rest of the world except an impoverished China and revisionist USSR. They not only developed a modern agricultural base, electrical grid, technology sector, urban density, education system, and healthcare system, they also developed a strong enough military to deter further attacks on their people by Western oppressors.

Cuba, therefore, is wildly successful. Despite 60 years of embargo, Cuba still has higher literacy, higher life expectancy, greater democratic participation, and stronger community support than the richest empire on the planet. Cuba developed healthcare for its citizens to such a degree that they have a surplus of doctors who can help other nations. They developed a COVID vaccine on the same timeline as the US did without having to spend $4B as an incentive. They invented a vaccine for lung cancer and they give of their life saving openly and freely to liberate their people and others from the oppression of the wealthy who demand profit for health. Americans can't even get access to the lung cancer vaccine because of the embargo. Cuba ended the racial apartheid of the capitalist regime, liberating all people to participate in their own governance.

Perhaps you've got another definition for communism?