No probs. I'll try to explain better:
The integration has an app and three device types:
Squeezebox Server Device - The app creates exactly one of these. It is responsible for connecting to the LMS server. It maintains a single lightweight connection which is used to send player commands and subscribe to status change updates from LMS. There is no longer any polling in the integration. If the connection drops (e.g. you update the plugins on LMS and it restarts) then the Squeezebox Server device will automatically try to reconnect, if that fails it will carry on trying to reconnect every minute until it succeeds. If you're just using LMS normally then you should be able to pretty much ignore this device. But, if you are shutting down LMS deliberately, then you can switch this device off to stop it trying to reconnect whilst LMS is shutdown. Then after starting LMS again you can switch the Squeezebox Server device back on so that it reconnects.
Squeezebox Player Device - The app creates one of these for each player. You can fully control the player (including switching it on/off) using this device. You don't need to disable or switch off these devices to reduce polling any more. There is only network traffic if something changes (e.g. a new track starts playing).
Squeezebox Player Child Switch Device - Each player can create up to two of these (you configure this when setting the players up in the app). If you want to be able to control the player alarms with automations (e.g. switch off your morning alarm clock when you're on holiday) then it can create an All Alarms switch to allow you to do that. The other switch a player can create is basically a copy of the player's on/off function. The only reason you might need this is if you want to add the player to Google Home and you want it just to be a switch instead of how Google Home normally sees a music player which is as a light (I guess because the music player properties include 'level' so Google thinks it's a dimmable light). In this case you add the child switch to Google Home instead of the player itself.
Does that help?
