Migration from Local (Mamp) Polylang to Live

The original site (https://archeofact.ca/site/en/ – https://archeofact.ca/site/en/ – https://archeofact.ca/site/fr/) was 2 wp site one english and one french.

I develop locally on Mamp a unique bilingual (with polylang) from the french site. The result is now a mix of local url and original french and english url.

Should I harmonized all that to my local url before migrating the site to it’s live environment or do it when live?

What are the ideal settings in Polylang for that type of migration?

The page I need help with: [log in to see the link]