How to view 100 video participant in One screen

Assuming you can get 49 participants per screen and run multiple screens of 49 (I have not tested this recently), you should be able to use a multi-viewer or window processor (external video hardware) to combine your computer's multiple video outputs into a single screen. Your computer would see these as different screens, but your monitor/display would only see a single input.

I am unsure about how many screens of 49 Zoom Client supports, but Zoom Rooms look to be capped at 3 screens (147 participants):

Hey, Thank you so much for sharing your idea. Yes I have same thought like it but instead of using multiple hardware we are keen to use ONE only and all the participant with 100+ should be view in single screen. 

Can any one show me some practical example for this? with any video need community assistance.