Yes, the Marketplace Multi-Vendor Module for Magento 2 supports all the LTR and RTL languages including Arabic, Hebrew, Chinese and Japanese.
If you want to change the language of the module then you can change the module keywords.
For this, you will need to upload a CSV file with an updated language keyword in the same format as it was for the English language.
You can also visit the following link for complete detail of keyword translation: https://webkul.com/blog/magento2-multi-vendor-marketplace/
Please do contact us for any further queries or requirements.