What’s the status of land border crossing in Central America during the COVID-19 pandemic?

I wonder whether it is possible for a French citizen and US legal permanent resident to cross borders via land between the 7 countries of Central America during the COVID-19 pandemic. The individual doesn’t have any special visa, work permit or residence in Central America.

https://reopen.europa.eu/en lists the land/air/sea border status for EU countries only, and https://www.iatatravelcentre.com/international-travel-document-news/1580226297.htm only mentions air travel.