Best practice - Zoom Room

[breed]

We have two approved Zoom Room configurations (Neat Bar Pro, Neat controller). We have in-person and online participants. Speakers vary so the speakers' equipment varies. We ask speakers to ensure they can connect to an HDMI cable. We also have a lav mic EVEN THOUGH the Neat bar has great voice reinforcement (and sound canceling). 

What is the best practice to ensure a speaker can share their content (including any audio from their computer) with participants both in-person and in the zoom room session? 

Currently, I'm testing these config instructions:

Speaker must have zoom desktop app installed.

Speaker must have a zoom login (I guess this could be provided by us).

Speaker must have HDMI connection.

Speaker enters sharing key and meeting password.

What audio checkboxes are needed to ensure computer playback is heard by online participants?

Thanks!