To introduce an interesting gadget called Touch Portal, which makes you feel like working in a small studio.
Basically it is an external control of your PC or Mac using iPad or Android devices. A control panel with control buttons can be setup and customized, and then applications on the computer can be activated or controlled from there. It's like you are controlling your computer using your own mobile devices.
This Touch Portal requires download and installation of the software to the computer, which is free of charge. The corresponding control apps are available both on Android and iOS devices for free. Free versions support limited control buttons. The Pro version supports multiple pages, and the buttons on each page can be adjusted accordingly.
This Touch Portal does not only work on ZOOM meeting. It is actually more useful in studio recording or live-streaming, where the more complicated software like OBS Studio are used. As it is programmable, it can be customized for different types of applications. Standard control panels for different applications are available for download too.
Declaration: The author was an early user of this software, but there is no relationship between the author and developer. The author has been using this and found it is nice and not expensive, and therefore suggest here as an option for those in need.