Hmm, I’m not sure we can add that into the HA documentation itself as there are many different reverse proxies and I don’t think HA recommends any particular one.
For HA OS users, I think there are one or two addons like this: GitHub - hassio-addons/addon-nginx-proxy-manager: Nginx Proxy Manager - Home Assistant Community Add-ons and that should configure the proxy for you.
Otherwise, you can have a look at this community guide Reverse proxy using NGINX - Community Guides - Home Assistant Community (home-assistant.io) which should have a good configuration for HA. I notice that it doesn’t have http2 enabled though - I’ll try to add it now.