Not an epidemiologist, but from what i understood in this article and others, yes, masks were and still are extremely useful. Social distancing less so, especially in closed locations ( because airborne means it can spread anywhere if the ventilation isn't good, unlike with droplets that had a limited range).

Masks (N95 or equivalent) are useful because they filter out the virus.

Closed spaces: ventilation or HEPA filters are necessary.

Think of cigarette smoke: if you can smell it, you’d get the virus

It means that hand washing was wildly overrated and that 1.5m are no substitute for masks at all.