Rolling/Mobile TV Cart with Wheels for 32-70 Inch LCD LED 4K Flat Screen TVs - UL Certificated TV Floor Stand with Shelf Holds Up to 100 lbs, Height Adjustable Trolley Max VESA 600x400mm- PSTVMC05 https://www.amazon.com/dp/B07T1HQBPM/ref=cm_sw_r_cp_api_glt_fabc_RYKGTXSYBYCDMVNPX8NS?_encoding=UTF8&psc=1
We've had luck with this - https://www.amazon.com/Rolling-Mobile-Wheels-Plasma-Screen/dp/B07T1HQBPM
Had 65" TV with laptop or desktop, plus Logitech webcam - https://www.amazon.com/Logitech-PTZ-Pro-Camera-Conference/dp/B06Y472LYT
And microphone/speaker - https://www.amazon.com/Jabra-Wireless-Bluetooth-Speaker-Softphone/dp/B071CGH8YF
Good luck.
Theres absolutely no way you can put it on a desk, as you need a good 4 and half feet of distance.
I use this rolling stand behind my desk. https://www.amazon.com/dp/B07T1HQBPM?ref=ppx_pop_mob_ap_share