That’s correct, see https://discuss.tryton.org/t/deploying-tryton-with-a-python-virtual-environment and https://discuss.tryton.org/t/install-sao-in-a-production-environment
I thought you read those one as well. They are based on NginX and Gunicorn.
I personally want to use the tools I know and where I’m familiar with. If you are familiar with Apache, go for it. You already have setup a running system which even more plead for keeping Apache. You just have to setup a reverse proxy. You can follow https://discuss.tryton.org/t/deploying-tryton-with-a-python-virtual-environment to get Tryton running with Gunicorn. Then you can read the section how to setup NginX but you have to use your knowledge to convert the idea to Apache. Looking at the links I provided and the examples it shouldn’t be that hard to get it running.