I installed a composer compatible with the extensions bought from amasty.com only.
Currently, I bought an extension offered by amasty from the Magento marketplace.
To install the module, I need to install another composer suggested by the Magento marketplace.
So, one store with two composers.
The question is:
For the extensions developed by the same company (amasty),
will they work fine?
I think you no need to install another composer.You need to install the extension using that composer command only.