Sorry, should have put that in the OP. There's a lot of non-english sources talking about thousands and tens of thousands.

Here are 2 English articles talking about up to 50.000 participating:

https://www.rt.com/news/512744-italy-restaurants-protest-lockdown/ https://off-guardian.org/2021/01/15/i-am-open-50000-italian-restaurant-owners-plan-to-ignore-lockdown/

Sorry, should have put that in the OP. There's a lot of non-english sources talking about thousands and ten-thousands.

Here are 2 English articles talking about up to 50.000 participating:

https://www.rt.com/news/512744-italy-restaurants-protest-lockdown/

https://off-guardian.org/2021/01/15/i-am-open-50000-italian-restaurant-owners-plan-to-ignore-lockdown/