I use your module v2.2.3 for my site Magento 2.3.5.
However, on the checkout page, it doesn't display the Paypal payment method. The cause of this issue because of the conflict between the module Bss_OneStepcheckout with module RealexPayments_HPP.
May you please guide us to fix it?
To fix this conflict, please edit the file app/design/frontend/Smartware/porto/RealexPayments_HPP/web/js/model/validation.js as below: