We don't need a full lockdown now, but back in March, noone knew what worked
Densely populated European countries like Italy had an emergency,
hence lockdown - which is basically nearly all possible measures at once
because there was no time to try them out one at a time
For developing countries, lockdown makes little sense as they can't support their population doing this
Also some African countries have average age < 20, so COVID is nowhere near the risk it is to aging Western countries
Emerging economies like Brazil have mean age in the 30s, so also less serious
They tend to have the finances to support some measures
Lockdown was not necessary,
but there are several other measures that would likely have prevented the huge number of excess deaths
Total denial was a wilfully stupid & irresponsible policy from Bolsonaro
The USA can't have one policy fits all, as it is basically a continent,
with some v sparsely populated states hardly affected,
while densely populated states have been seriously affected,
especially in their 2nd wave / reignition of 1st wave when their governors were following the Trump denial playbook