Plugin Submission Related Query

I am currently developing a payment plugin for Magento/Adobe Commerce and planning to submit it to the Adobe Commerce Marketplace. However, I would like to clarify an important point regarding the testing environment.

Our plugin currently does not provide a separate test (sandbox) mode for merchants because testing is conducted in a dedicated UAT environment with only one approved merchant account. The production environment processes real payments directly.

I would appreciate your guidance on whether this setup would be acceptable for submission to the Marketplace or if the lack of a dedicated test mode will affect the approval process.

Additionally, if there are any recommended best practices or alternative approaches to handle this scenario, I would be grateful to receive your advice.