Hi @l_eckardt.
Pro is coded following Wordpress standards and it should work without any issues with plugins. However, we cannot provide guarantee that all plugins will work seamlessly since there are many factors to be considered when it comes to compatibility.
What I can suggest though it that usually, paid plugins have some money back guarantee. You can try getting in touch with them if they offer that and try using the plugin with Pro and see if things work without issues.
In case you are seeing any, you can get in touch with us and we can see what we can do. However, it would still be best to directly go to the plugin developer due to the fact that there is simply no way to account for all of the potential variables at play when using another developer’s plugin or script. Because of this, any questions you have regarding setup, integration, or troubleshooting any piece of functionality that is not native to X will need to be directed to the original developer.
I hope this gives you some ideas.
Thank you.