Upgrade Magento migrate from Elasticsearch to Opensearch

Hello, good day:

I upgraded my Magento installation from 2.4.2-p2 to 2.4.6-p3, i uninstalled elasticsearch in a kubernete of testing and replace for opensearch, all works fine aparently

I don’t understand at all how works elastic/open search so: I need to transfer any data from elastic to open search? If yes how?

After opensearch installation I ran the command:

php bin/magento indexer:reindex 

Aparently all it’s ok, no data is missing but I don’t made a backup from elastic to open search and i don’t want to lose any data.

Thank you in advance