Why did you post the same question twice? Duplicate threads are a search nightmare. I deleted the duplicate thread and it turns out that thread had the details. I know you're anxious to get going, but it may take days or even weeks for a member to respond to a question.
OK, nevermind. Welcome to the Tascam Forums.
Now, to your question:
This setup will work for all of these types of services where they all have an input device (microphone) and an output device (speakers). You have to assign an input to the service and an output from the service, to and from your console. But, you run the risk of generating feedback because of creating a loop and this is where you have to be careful. Here is the general procedure, followed by an example:
Use a Bus to send to the service. Put whatever you want on that Bus to feed the service from the console. But, you do not put the output of that service on the Bus. Example:
Your Aux Bus feeds the input to the service, i.e. Skype, Zoom, etc..
Assign console Channel 1/2 to the Output from the Service. These channels are assigned to the Stereo Bus on the console and you listen on your monitors. These channels are not assigned to the Aux Bus feeding the service. You will be monitoring the output of the service on these channels.
All other console channels:
Whatever you want to send to the service, assign to both the Stereo Bus (so you can monitor it) and also the Aux Bus to feed the service. Everyone can hear you, and you can hear yourself because you are monitoring the Stereo Bus. The audio coming back to the console does not feed back because it does not go on the Aux Bus feeding the service.
In the broadcast world this is called a "mix minus" which means the mix, minus the "caller" or the output of the service. If you send the output back to the input by assigning those channels to the Bus feeding the service, you will really wish you hadn't done that.
Edit: You should monitor on headphones if you are using a microphone and want to monitor it. If you want to monitor on speakers, leave your microphone on the Aux Bus but take it off the Stereo Bus.