This is official. French President Emmanuel Macron has decreed a new general lockdown for 4 weeks at least. Therefore, new restrictions are going to be implemented such as the closure of non-necessary stores, as well as universities. Yet, daycares, junior high schools and high schools will remain open.
As for parks and gardens - that were polemical for the first lockdown - they will remain open all along this new lockdown. This is what the government spokesperson, Gabriel Attal, said on October 29, 2020 on RTL. Markets are also open "Markets - covered or in the open air - remain open like parks and gardens" he said.
Furthermore, Gabriel Attal said flower stores will be allowed to open "until Sunday evening for All Saints' Day". For the record, florists are yet considered as non-necessary stores and are subject to closure for lockdown. But because of November 1st, they can remain open in order to enable French people to go and put flowers on the graves of the deceased in cemeteries.