Not sure why you got downvoted. This works for a lot of people. Doesn’t work for me because I find the video aspect to be awkward, but the concept of ‘body doubling’ as a way of enabling focus is well established.

[Editing to note that perhaps you were downvoted because OP lives in a place with internet issues and couldn’t use Discord to cowork with friends, so the video and bandwidth heavy approach of Focusmate isn’t a viable recommendation]