Web Client HD Requirements

Does anyone know what is required for the host to provide HD(720P) video while using Zoom Meeting WEB CLIENT?

I've read statements https://support.zoom.us/hc/en-us/articles/207347086-Group-HD and discussion about desktop client HD video requirements https://community.zoom.com/t5/Meetings/Group-HD-amp-Its-Requirements/m-p/605, but neither provides any requirement infos of WEB CLIENT, which was really confusing when using legacy or thin devices to host a meeting without native client installed.

Does anyone knows?